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WO2018163091A1 - Système électrique de véhicule - Google Patents

Système électrique de véhicule Download PDF

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Publication number
WO2018163091A1
WO2018163091A1 PCT/IB2018/051498 IB2018051498W WO2018163091A1 WO 2018163091 A1 WO2018163091 A1 WO 2018163091A1 IB 2018051498 W IB2018051498 W IB 2018051498W WO 2018163091 A1 WO2018163091 A1 WO 2018163091A1
Authority
WO
WIPO (PCT)
Prior art keywords
power
regulated voltage
vehicle
terminal
drl
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/IB2018/051498
Other languages
English (en)
Inventor
Partha Biswas
Arumugham SIVAKUMAR
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TVS Motor Co Ltd
Original Assignee
TVS Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TVS Motor Co Ltd filed Critical TVS Motor Co Ltd
Priority to CN201880016708.2A priority Critical patent/CN110382294A/zh
Publication of WO2018163091A1 publication Critical patent/WO2018163091A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q1/00—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor
    • B60Q1/02—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments
    • B60Q1/04—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights
    • B60Q1/14—Arrangement of optical signalling or lighting devices, the mounting or supporting thereof or circuits therefor the devices being primarily intended to illuminate the way ahead or to illuminate other areas of way or environments the devices being headlights having dimming means
    • B60Q1/1407—General lighting circuits comprising dimming circuits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Q—ARRANGEMENT OF SIGNALLING OR LIGHTING DEVICES, THE MOUNTING OR SUPPORTING THEREOF OR CIRCUITS THEREFOR, FOR VEHICLES IN GENERAL
    • B60Q2400/00—Special features or arrangements of exterior signal lamps for vehicles
    • B60Q2400/30—Daytime running lights [DRL], e.g. circuits or arrangements therefor

Definitions

  • the present subject matter relates to a vehicle. More particularly, the present subject matter relates to a vehicle electrical system.
  • the daytime running lights are positioned on a front of the vehicle; either integrated with the headlamps or separate, and emit a white or yellow light when the ignition is activated.
  • solid-state lighting (SSL) devices such as light-emitting diodes, are increasingly being used with the daytime running lights (DRL) because of their low power consumption, long lifetime and reliability.
  • one or more light-emitting diodes are associated with a photometry of the daytime running lights (DRLs) function.
  • a carrier made of polyethylene terephthalate based polymer, glass fibres and Laser Directed Structure (LDS) additives acts as a housing for enclosing a Light Emitting Diode (LED) based daytime running lights (DRLs).
  • LED Light Emitting Diode
  • DDS Laser Directed Structure
  • a carrier made of polyethylene terephthalate based polymer, glass fibres and Laser Directed Structure (LDS) additives acts as a housing for enclosing a Light Emitting Diode (LED) based daytime running lights (DRLs).
  • LED Light Emitting Diode
  • DSLs Light Emitting Diode
  • an additional electronic circuitry is required to switch OFF the daytime running lights (DRLs) when a headlamp switch is turned ON.
  • two or more hardware units in the form of the printed circuit board (PCB) provides a complete circuitry for the design of the daytime running lights (DRL) to function on the vehicle.
  • a plurality of light sources in the form of Light Emitting Diodes (LEDs) and a reflector are installed on the printed circuit board (PCB). Further, as per the photometric requirements, the electronic circuitry for activating the light sources are installed on another printed circuit board (PCB). Hence, the electronic circuitry and the light sources are electrically connected through one or more electrical connections on the two printed circuit boards (PCBs).
  • the design for the daytime running lights (DRL) comprises a lens, a flexible printed circuit board (PCB) and a fixing support.
  • a flexible printed circuit board PCB
  • the flexible printed circuit board PCB
  • the flexible printed circuit board is positioned right behind the lens and mounted at the front end of the fixing support through a bolt.
  • the lens is connected with the fixing support in a positioning manner.
  • the conventional design for the daytime running lights (DRL) does not explain the photometry requirements for the lens design.
  • the conventional arrangement of the daytime running lights (DRL) on the vehicle comprises a complicated design for the daytime running lights (DRL) including at least two hardware units in the form of the printed circuit board (PCB), one or more LEDs etc., and hence increases the overall number of components, parts, wirings on the vehicle.
  • PCB printed circuit board
  • LEDs etc.
  • the daytime running lights (DRL) it is desirable to provide a compact, simple and cost-effective installation of the daytime running lights (DRL) on the vehicle. Further, it is desirable to design the daytime running lights (DRL) in the manner so as to reduce packaging constraints, reduce cost of the arrangement of the daytime running lights (DRL) on the vehicle, reduce the number of Light Emitting Diodes (LEDs) used in the design for the daytime running lights (DRL). Furthermore, it is needed to provide a design for the daytime running lights (DRL) on the vehicle which is compactly packaged and conveniently installed in existing vehicles.
  • LEDs Light Emitting Diodes
  • Fig.l is a schematic block diagram of an integrated module adapted to form a daytime running lights (DRL) as per one embodiment of the present invention.
  • DRL daytime running lights
  • Fig.2 is a schematic circuit diagram illustrating a vehicle electrical system including one or more electrical connections of the integrated module as per one embodiment of the present invention.
  • Fig.3 is a schematic circuit diagram illustrating a first ground path created by a LED driver circuit and a second ground path created by a shutdown circuit as per one embodiment of the present invention.
  • Fig. 4 is a schematic circuit diagram illustrating a low-pass filter added to an input of the shutdown circuit as per another embodiment of the invention.
  • Fig. 5a illustrates voltage waveforms explaining the superimposition of the output regulated voltage A.C power on a D.C line of the output regulated voltage D.C power when a headlamp switch is turned ON and Fig.5b illustrates voltage waveforms with the low pass filter added to the shutdown circuit as per another embodiment of the present invention.
  • Fig. 6 illustrate a front view of a two-wheeled vehicle illustrating the arrangement of the integrated module adapted to form the day time running lights (DRL) on the vehicle, as per one embodiment of the present invention.
  • DRL day time running lights
  • Fig.7 is a perspective exploded view of the integrated module, at least one light source as per one embodiment of the present invention.
  • DRL Automatic headlamp and daytime running lights
  • automotive vehicles Such systems are designed to provide illumination of vehicle headlamps and, in some cases, parking or taillights and for purposes of improving the manner in which a vehicle is made conspicuous in the daytime to thereby increase safety.
  • the daytime running lights (DRL) provided in the vehicles has to automatically turn ON whenever engine is running and it has to automatically turn OFF whenever a headlamp switch is turned ON.
  • the design for the daytime running lights (DRL) includes one or more LEDs and at least one electronic circuitry.
  • said one or more LEDs are installed on a printed circuit board (PCB) and said at least one electronic circuitry controlling the actuation of said one or more LEDs are installed on another printed circuit board (PCB).
  • the conventional design for the daytime running lights (DRL) on the vehicle includes one or more printed circuit boards (PCB) electrically connected with each other.
  • two-wheeled vehicles including a motorcycle type two-wheeled vehicle and a scooter type two-wheeled vehicle includes a permanent magnet generator for converting the mechanical energy produced by an internal combustion engine into electricity for charging a vehicle battery and for supplying to at least one electrical load such as lamps, control units, sensors and actuators.
  • the alternating voltage generated by the permanent magnet generator is regulated and rectified by a regulator and rectifier (RR) unit for charging the battery and for supplying to various D.C (Direct Current) loads.
  • D.C Direct Current
  • the alternating voltage generated by the permanent magnet generator is also regulated and supplied to A.C (alternating current) loads.
  • the regulator and rectifier (RR) unit performs the function of rectification and regulation to ensure that vehicle electrical loads are operated with optimum voltage levels.
  • the design for the daytime running lights (DRL) includes said one or more light emitting diodes (LEDs) in the form of the light source installed on the printed circuit board (PCB) and said electronic circuitry installed on another printed circuit board (PCB).
  • the electronic circuitry for the daytime running lights (DRL) design includes a LED driver circuit and a shutdown circuit.
  • the LED driver circuit is being connected with the regulator and rectifier (RR) unit A.C output.
  • the repetitive voltage spikes in the regulator and rectifier (RR) unit A.C voltage output increases voltage stresses on the LED driver circuit.
  • the voltage stress is particularly high for the LED driver circuit as the line resistances are small to achieve wide operating voltage range and sufficient light output meeting photometry requirements.
  • the conventional arrangement of the daytime running lights (DRL) on the vehicle includes at least two printed boards, more number of Light Emitting Diodes (LEDs) in the form of the light source, electronic circuitry and one or more electric connections between two printed boards of said at least two-printed boards.
  • LEDs Light Emitting Diodes
  • the present invention relates to the compact and cost-effective design for the daytime running lights (DRL).
  • the present invention related to a single hardware unit adapted to describe the circuitry for the daytime running lights (DRL).
  • DRL daytime running lights
  • the present invention relates to a vehicle electrical system comprising of an integrated module enclosed in a housing.
  • said integrated module includes said at least one light source and said at least one electronic circuitry integrally installed therein.
  • said at least one electronic circuitry includes the LED driver circuit and the shutdown circuit.
  • said LED driver circuit having one terminal being electrically connected to said output regulated voltage D.C power of the regulator and rectifier (RR) unit and other terminal being electrically connected to a common ground to form a first ground path.
  • said shutdown circuit includes one terminal being electrically connected to said output regulated voltage A.C power of the regulator and rectifier (RR) unit and other terminal to said common ground to form a second ground path such that said first ground path and said second ground path are electrically isolated.
  • said at least one light source includes at least one Light Emitting Diodes (LEDs).
  • said integrated module forms day time running lights (DRL) circuit.
  • a cost-effective and simple installation of the daytime running lights (DRL) on the vehicle includes the electronic circuitry and the shutdown circuit of the daytime running lights (DRL) being integrally installed on the integrated module in the form of the single printed circuit board (PCB).
  • the daytime running lights (DRL) including the electronic circuitry and the shutdown circuit is integrated on the single hardware unit.
  • said electronic circuitry including the LED driver circuit for operating the LEDs and the shutdown circuit to switch OFF the LEDs by sensing headlamp status are integrated within a single PCB.
  • said at least one light source in the form of the LEDs is electrically connected to the output regulated D.C power of rectifier and the regulator unit.
  • the driver circuit having one terminal being electrically connected to the common ground forms the first ground path.
  • said shutdown circuit having one terminal being electrically connected to said common ground forms a second ground path.
  • said first ground path and said second ground path are electrically isolated.
  • said improved design for the daytime running lights (DRL) on the vehicle includes said at least one light source including said LEDs and said at least one electronic circuitry are integrally installed on the single metal core printed circuit board (MC-PCB).
  • said at least one light source includes one or more lens for collimating the light produced by said at least one light source.
  • said one or more lens produces a narrow light beam from the central LED and wider light beam from adjacent LEDs.
  • the electronic circuitry comprises the LED driver circuit for activating the LEDs when the headlamp switch is in an OFF position and the shutdown circuit for shutting down said LEDs when the headlamp switch is in ON condition.
  • said output regulated D.C power is utilized by the LED driver circuit for LED operation and said output regulated A.C power is used by the shutdown circuitry.
  • said output regulated A.C power is electrically isolated from the LED driver circuit by isolating the first ground path of the LED driver circuit from the second ground path of the shutdown circuit.
  • PCB printed circuit board
  • DRL day time running lights
  • the object of the invention to provide the integrated module for establishing a daytime running mode of operation which can be conveniently manufactured as a unit for easy installation in the vehicle.
  • the present invention relates to the integrated module in the form of the single printed circuit board adapted to represent design for the daytime running lights (DRL). More specifically, the present invention relates to the integrated module as the single hardware circuit that creates the daytime running lights (DRL) by integrally installing said at least one light source and said at least one electronic circuitry on the single printed control board (PCB). Thus, reducing the number of components and facilitating cost effective installation of the daytime running lights (DRL) on the vehicle. [00032] The present invention relates to the vehicle electrical system including the integrated module adapted to form the day time running lights (DRL).
  • the present invention relates to the daytime running lights (DRL) that is especially well suited for integration with existing exterior illumination systems of an automotive vehicle, and specifically in the disclosed embodiment, integration with the existing headlamp circuit of the vehicle. Accordingly, the invention is readily compatible both as original equipment in new vehicles and for retrofit of many vehicles already in service. Moreover, the circuit of the present invention can be fabricated with a comparatively small number of conventional individual circuit devices. These devices can be conveniently packaged for expeditious installation in both new and older vehicles. The invention possesses novel and unique features which individually and collectively contribute to its attributes.
  • Fig. 1 is a schematic diagram of the integrated module (100) adapted to form the daytime running lights (DRL) as per one embodiment of the present invention.
  • the vehicle electrical system (23) comprises the integrated module (100) enclosed in the housing (108) (shown in Fig.7).
  • said integrated module (100) includes said at least one light source (104) and at least one electronic circuitry (106) integrally installed therein.
  • said at least one electronic circuitry (106) includes the LED driver circuit (103) and the shutdown circuit (105).
  • said at least one light source (104) includes at least one light emitting diode (LEDs) (104).
  • said integrated module (100) forms a day time running lights (DRL) circuit.
  • the integrated module (100) with said LED driver circuit (103) activates said at least one light source including said at least one LED (104) through input voltage supply (101) from said vehicle battery (20) (shown in Fig.2).
  • said regulator and rectifier (RR) unit (11) on the vehicle electrical system performs rectification and regulation of said alternating current for supplying an output regulated voltage D.C power (12) and said output regulated voltage A.C power (13) (shown in Fig.2).
  • at least one lighting and signalling device (16) is having an input connected to an output of said regulator and rectifier (RR) unit (11) for receiving said output regulated voltage A.C power (13).
  • said at least one lighting and signalling device is a headlamp (16).
  • a switch module (14) selectively operable to off and on positions for selectively actuating said at least one lighting and signalling device (16).
  • said switch module (14) is a headlamp switch (21).
  • said shutdown circuit (105) deactivates said at least one light source (104) including said at least one LED (104) when the input (102) from the headlamp switch (21) is received.
  • said LED driver circuit (103) is having one terminal being electrically connected to said output regulated voltage D.C power (12) of the rectifier and regulator (RR) unit (11) (shown in Fig.2) and other terminal being electrically connected to a common ground (200) to form the first ground path (201a).
  • said shutdown circuit (105) having one terminal being electrically connected to said output regulated voltage A.C power (13) of the rectifier and regulator (RR) unit (11) (shown in Fig.2) and other terminal to said common ground (200) to form a second ground path (201b).
  • said first ground path (201a) and said second ground path (201b) are electrically isolated.
  • the vehicle electrical system (23) comprises the permanent magnet generator (10) for producing an alternating current, the vehicle battery (20) operatively connected to said permanent magnet generator (10) to be charged therefrom.
  • the permanent magnet generator (10) is coupled with a crankshaft of an internal combustion engine for generating alternating voltage.
  • the regulator and rectifier (RR) unit (11) is operatively connected to said permanent magnet generator (10).
  • said regulator and rectifier (RR) unit (11) performs the rectification and regulation of said alternating current generated by the permanent magnet generator (10) for supplying the output regulated voltage D.C power (12) and the output regulated voltage A.C power (13) to at least one D.C load (22) and at least one A.C load (16), (19) respectively.
  • the output regulated voltage A.C power (13) is supplied to said at least one A.C electrical load including at least one signalling and lightening device such as headlamp (16) and tail lamp (19).
  • the headlamp (16) has a high beam filament (17) and a low beam filament (18).
  • a fuse (24) protects the wiring harness against the vehicle battery (20) short circuit condition and an ignition switch (21) connects or disconnects battery (20) from said at least one D.C load (22).
  • the switch module (14) in the form of the headlamp switch (14) connects the A.C output voltage from the rectifier and regulator (RR) Unit (11) with a beam control switch (15) which in turn is connected with headlamp (16).
  • Fig. 3 is a schematic circuit diagram illustrating the first ground path (201a) created by the LED driver circuit (103) and the second ground path (201b) created by the shutdown circuit (105) as per one embodiment of the present invention.
  • said vehicle electrical system comprises the integrated module (100) enclosed in the housing unit (108) (shown in Fig.7.
  • said integrated module (100) includes said at least one light source (104) and said at least one electronic circuitry integrally installed therein.
  • said at least one electronic circuitry (106) includes the LED driver circuit (103) and the shutdown circuit (105).
  • said LED driver circuit (103) is having one terminal being electrically connected to said output regulated voltage D.C power (12) of the regulator and the rectifier (RR) unit (11) and other terminal being electrically connected to the common ground (200) to form the first ground path (201a).
  • said shutdown circuit (105) is having one terminal being electrically connected to said output regulated voltage A.C power (13) and other terminal to said common ground (200) to form the second ground path (201b).
  • said first ground path (201a) and said second ground path (201b) are electrically isolated.
  • said at least one light source (104) includes at least one Light Emitting Diodes (LED) (104) being activated by the LED driver circuit (103) of the electronic circuitry (106).
  • said integrated module (100) forms the day time running lights (DRL) circuit.
  • the LED driver circuit (103) of the electronic circuitry (106) of the integrated module (100) comprises a diode Dl for protection against reverse voltage, a capacitor CI for reducing voltage ripple.
  • said LED driver circuit (103) controls current in said at least one light source (104) including at least one LED (104) as LED1, LED2 and LED 3.
  • a resistor Rl through resistor R4 and diode D3 turns ON a transistor Q2 such that said at least one light source (104) is activated by said LED driver circuit (103).
  • the switch module (14) including the headlamp switch (14) when the switch module (14) including the headlamp switch (14) is turned ON, the output regulated A.C power (13) is supplied to the bridge rectifier D2 which along with capacitor C2 and resistor R2 turns ON the transistor Ql.
  • the transistor Q2 when a transistor Ql is turned ON, the transistor Q2 turns OFF which in turn deactivates the said at least one light source (104).
  • the shutdown circuit (105) turns OFF said at least one light source (104) when the headlamp switch is turned ON.
  • the bridge ground path forming the second ground path (201b) is electrically isolated from a LED current path forming the first ground path (201a).
  • the collector is pulled to bridge ground which is at a negative potential compared with the common ground (GND) (200).
  • diode D3 is in reverse bias and hence transistor Q2 is turned OFF thus switching OFF said at least one light source (104).
  • Fig. 4 is a schematic circuit diagram illustrating a low-pass filter (202) added to an input of the shutdown circuit (105) as per another embodiment of the invention.
  • a circuit for the low pass filter circuit (202) comprises a resistor R3 and a capacitor C3.
  • said resistor R3 and the capacitor C3 are connected at the input of shutdown circuit (105) of the electronic circuitry (106) of the integrated module (100).
  • one or more high frequency components in the repetitive spikes in the output regulated voltage A.C power (13) of the regulator and rectifier (RR) Unit (11) are eliminated by the low pass filter (202) and hence the output regulated voltage A.C power (13) on a D.C line (107) of the output regulated voltage D.C power (12) are reduced.
  • Fig. 5a illustrates voltage waveforms (300) explaining the superimposition of the output regulated voltage A.C power (13) on the D.C line (107) of the output regulated voltage D.C power (12) when the headlamp switch (14) is turned ON and
  • Fig.5b illustrates voltage waveforms (301) with low pass filter (202) added to the shutdown circuitry (105) as per another embodiment of the present invention.
  • Fig. 5a illustrates the voltage waveforms (300) for a conventional daytime running lights (DRL) when the headlamp switch (14) is in ON condition. In the conventional daytime running lights (DRL), the supply voltage for the daytime running lights (DRL) is the output regulated voltage D.C power.
  • the voltage across the D.C line (107) of the output regulated voltage D.C power (12) and the common ground (200) has the output regulated voltage A.C power (13) superimposed on the output regulated voltage D.C power (12).
  • the low pass filter circuit (202) shown in Fig.2 comprises the resistor R3 and capacitor C3 being connected at the input of shutdown circuitry (105).
  • the high frequency components in the repetitive spikes in the output regulated voltage A.C power (13) of the regulator and rectifier (RR) unit (11) are eliminated by the low pass filter circuit (202) (shown in Fig.4) and hence the output regulated voltage A.C power (13) superimposed in the D.C line (107) of the output regulated voltage D.C power (12) are reduced.
  • the voltage across shutdown circuitry (105) capacitor C2 indicates that transistor Ql is turned ON and transistor Q2 is turned OFF.
  • Fig. 6 illustrate a front view of a two-wheeled vehicle (1) illustrating the arrangement of the integrated module (100) adapted to form the daytime running lights (DRL) on the vehicle (1) as per one embodiment of the present invention.
  • a handlebar (2L), (2R) is rotatably integrally connected to a steering shaft for steering the vehicle (1) and is connected to a front wheel (6) through the steering shaft.
  • the handlebar (21), (2R) is rotatably supported, independently of a front fork assembly (6).As per one embodiment, a portion lying ahead of the front fork assembly (6), at least one signalling and lighting device such as a headlamp (16), a pair of signaling devices such as turn signal lamps (not shown), a display device such as a speedometer (7) are housed by a holding structure (not shown) mounted thereto.
  • a two legged stand (8) is used to support and hold the vehicle (1). The stand (8) moves on a pivot (not shown) to take up two positions, one folded up and the other on the ground.
  • a pair of foot pedal (5) for the vehicle (1) comprises a pedal main body.
  • the integrated module (100) adapted to form the daytime running lights (DRL) is arranged on a front of the vehicle (1), below the headlamp (16), and emit a white or yellow light when the ignition switch (21) (shown in Fig.2) is activated.
  • the switch module (14) in the form of the headlamp switch (14) is provided on at least a portion of said handlebar (21), (2R).
  • the headlamp (16) is connected in parallel with the headlamp switch (14) input sensing line.
  • said integrated module (100) adapted to form the daytime running lights (DRL) includes said at least one light source (104) including said at least one LED (104) and said at least one electronic circuitry (106).
  • said at least one electronic circuitry (106) including the LED driver circuit (103) and the shutdown circuit (105) can withstand transient high voltages generated in the supply line.
  • Fig. 7 is a perspective exploded view of the integrated module (100), at least one light source (104) as per one embodiment of the present invention.
  • the integrated module (100) is adapted to form the daytime running lights (DRL).
  • said vehicle electrical system (23) comprises the integrated module (100) including said at least one light source (104) and at least one electronic circuitry (106) (shown in Fig 2) integrally installed therein.
  • said housing (108) is configured to form an enclosure for the integrated module (100).
  • said at least one light source (104) includes said at least one Light Emitting Diodes (LEDs) (104).
  • one or more lens (107) collimates the light output in order to meet the photometry requirements.
  • said one or more lens (107) converts a LED light output of one LED (104) of said at least one LED (104) into narrow beam and the LED light output of said two LEDs (104) of said at least one LED (104) into wider beams respectively.
  • said housing (108) is detachably attached on a vehicle chassis.
  • said integrated module (100) in the form of the single printed circuit board (PCB) (202) is the metal core PCB (MC-PCB).
  • said housing (108) for the integrated module is detachably secured to the integrated module (100).
  • said at least one LED (104) generates light output when the engine is operating and the switch module (14) (shown in Fig.2) in the form of the headlamp switch is OFF.
  • said one or more lens (107) are fixedly connected with thehousing (108)) by snap fit or through one or more fasteners made of synthetic materials including flexible resins such as nylon so that the design for the integrated module (100) is uniform.
  • said integrated module (100) ensures sufficient heat dissipation from said at least one LED (104) and facilitates in achieving wide operating temperature range.
  • the present invention discloses the integrated module being adapted to form the daytime running lights (DRLs) and hence reduces the number of components and parts required in the design for the daytime running lights (DRL) and thus provides an improved, compact and simple design for the daytime running lights (DRL).
  • the integrated module as a single printed circuit board (PCB) includes all electrical connections and components of the daytime running lights (DRLs) and hence provides a cost-effective installation of the daytime running lights (DRLs) on the vehicle.
  • the low pass filter added to the input of the shutdown circuit of the electronic circuitry of the integrated module eliminates the one or more high frequency components in the repetitive spikes present in the output regulated voltage A.C power of the regulator and rectifier (RR) Unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Lighting Device Outwards From Vehicle And Optical Signal (AREA)

Abstract

La présente invention concerne un système électrique de véhicule (23) qui comprend un module intégré (100) renfermé dans un boîtier (108). Le module intégré (100) comprend au moins une source de lumière (104) et au moins une circuiterie électronique (106) installée solidaire en son sein, et ladite circuiterie électronique (106) comprend un circuit d'attaque de DEL (104) et un circuit d'arrêt (105). Le circuit d'attaque de DEL (104) a une borne connectée électriquement à ladite alimentation CC de tension régulée de sortie (12) et une autre borne connectée électriquement à une masse commune (200) pour former un premier trajet de masse (201a). Le circuit d'arrêt (105) a une borne connectée électriquement à ladite alimentation CA de tension régulée de sortie (13) et une autre borne connectée électriquement à ladite masse commune (200) pour former un second trajet de masse (201b) de telle sorte que ledit premier trajet de masse (201a) et ledit second trajet de masse (201b) sont électriquement isolés.
PCT/IB2018/051498 2017-03-09 2018-03-08 Système électrique de véhicule Ceased WO2018163091A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201880016708.2A CN110382294A (zh) 2017-03-09 2018-03-08 车辆电气系统

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN201741008241 2017-03-09
IN201741008241 2017-03-09

Publications (1)

Publication Number Publication Date
WO2018163091A1 true WO2018163091A1 (fr) 2018-09-13

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Application Number Title Priority Date Filing Date
PCT/IB2018/051498 Ceased WO2018163091A1 (fr) 2017-03-09 2018-03-08 Système électrique de véhicule

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WO2003045733A1 (fr) * 2001-11-30 2003-06-05 Tyco Electronics Amp Korea Limited Appareil de commande d'utilisation diurne des lampes d'une automobile

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