CN113306394A - Capacitive touch type steering wheel switch backlight control system and control method - Google Patents
Capacitive touch type steering wheel switch backlight control system and control method Download PDFInfo
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- CN113306394A CN113306394A CN202110575073.3A CN202110575073A CN113306394A CN 113306394 A CN113306394 A CN 113306394A CN 202110575073 A CN202110575073 A CN 202110575073A CN 113306394 A CN113306394 A CN 113306394A
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- control module
- switch
- steering wheel
- backlight
- vehicle body
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K35/00—Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
- B60K35/10—Input arrangements, i.e. from user to vehicle, associated with vehicle functions or specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/005—Electro-mechanical devices, e.g. switched
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/105—Controlling the light source in response to determined parameters
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
- H05B47/175—Controlling the light source by remote control
- H05B47/18—Controlling the light source by remote control via data-bus transmission
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K2360/00—Indexing scheme associated with groups B60K35/00 or B60K37/00 relating to details of instruments or dashboards
- B60K2360/20—Optical features of instruments
- B60K2360/33—Illumination features
- B60K2360/341—Illumination of dials
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Steering Controls (AREA)
Abstract
The invention discloses a capacitive touch type steering wheel switch backlight control system and a control method, and the capacitive touch type steering wheel switch backlight control system comprises a sound control module, a vehicle body control module, a combination switch and a steering wheel switch control module, wherein the vehicle body control module is respectively in communication connection with the sound control module, the combination switch and the steering wheel switch control module; the sound control module is used for setting the backlight brightness of the switch and sending a corresponding brightness value signal to the vehicle body control module; the combined switch sends a position lamp turning-on or turning-off signal to the vehicle body control module according to the turning-on or turning-off state of the position lamp switch; the vehicle body control module is used for receiving the brightness value signal sent by the sound control module, acquiring a position lamp turning-on or turning-off signal sent by the combination switch, and sending a switch backlight lighting signal and the brightness value signal to the steering wheel switch control module; the steering wheel switch control module receives the switch backlight lightening and brightness value signals sent by the vehicle body control module and controls the steering wheel switch backlight to lighten according to the corresponding brightness value.
Description
Technical Field
The invention belongs to the technical field of automobiles, and particularly relates to a capacitive touch type steering wheel switch backlight control system and a control method.
Background
At present, with the continuous development of automobile technology, more and more switches and keys are integrated on a steering wheel switch. Meanwhile, with the continuous application and innovation of the technology, the steering wheel switch is also upgraded to a capacitive touch switch with more scientific and technological sense by the traditional key and toggle switch. The surface of the capacitive touch switch is a capacitive touch screen, and symbols of various switch keys can be displayed on the touch screen only when the switch backlight is lightened. In daytime, the key symbols are not clear due to low backlight brightness; at night, the high backlight brightness can bring dazzling discomfort to the driver.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a capacitive touch type steering wheel switch backlight control system and a control method, wherein the backlight control of a steering wheel switch is set to be a day working mode and a night working mode, a menu interface on a sound control module provides a switch backlight brightness adjusting option for a user, and the steering wheel switch control module controls the switch backlight to be displayed at 100% brightness according to a corresponding signal sent by a vehicle body control module in the day mode; and under the night mode, the steering wheel switch control module controls the switch backlight to display according to the brightness value set by the user on the menu interface of the sound module according to the corresponding signal sent by the vehicle body control module.
The technical scheme of the invention is described as follows by combining the attached drawings:
as one aspect of the present invention, a capacitive touch steering wheel switch backlight control system is provided, including a stereo control module 1, a vehicle body control module 2, a combination switch 3, and a steering wheel switch control module 4, where the vehicle body control module 2 is in communication connection with the stereo control module 1, the combination switch 3, and the steering wheel switch control module 4, respectively;
the sound control module 1 is used for setting the switch backlight brightness and sending a corresponding brightness value signal to the vehicle body control module 2;
the combination switch 3 sends a position lamp turning-on or turning-off signal to the vehicle body control module 2 according to the turning-on or turning-off state of the position lamp switch;
the vehicle body control module 2 is configured to receive a brightness value signal sent by the sound control module 1, acquire a position lamp turning-on or turning-off signal (corresponding to a night mode when the position lamp is turned on and a day mode when the position lamp is turned off) sent by the combination switch 3, and send a switch backlight lighting signal and a brightness value signal to the steering wheel switch control module 4;
the steering wheel switch control module 4 receives the switch backlight lightening and brightness value signals sent by the vehicle body control module 2, and controls the steering wheel switch backlight to lighten according to the corresponding brightness value.
Further, the sound control module 1 and the vehicle body control module 2 transmit and receive signals in a CAN bus communication mode; the vehicle body control module 2 respectively transmits and receives signals with the combination switch 3 and the steering wheel switch control module 4 in a LIN line communication mode.
Preferably, the sound control module 1 is a HU.
Preferably, the vehicle body control module 2 is a BCM.
Preferably, the combination switch 3 is a CSC.
Preferably, the steering wheel switch control module 4 is a SKCU.
As another aspect of the present invention, a method for controlling backlight of a capacitive touch steering wheel switch is also provided, which includes the following steps:
firstly, setting a switch backlight brightness value through a human-computer interaction interface of a sound control module 1, and sending the set backlight brightness value to a vehicle body control module 2 by the sound control module 1 in a CAN (controller area network) signal mode;
step two, the combination switch 3 acquires the current on or off state of the position lamp, and sends the on or off signal of the position lamp to the vehicle body control module 2 in a LIN signal mode;
step three, the vehicle body control module 2 receives the backlight brightness value signal sent by the sound control module 1 and the position lamp turn-on or turn-off signal sent by the combination switch 3, and sends the backlight turn-on signal and the brightness value signal to the steering wheel switch control module 4 in a LIN signal mode;
and step four, the steering wheel switch control module 4 receives the backlight lighting signal and the brightness value signal sent by the vehicle body control module 2, and controls the steering wheel switch backlight to be lit according to the corresponding brightness value.
Further, in the third step, the backlight control working mode of the steering wheel switch preset by the vehicle body control module 2 includes a day mode and a night mode, the position lamp corresponds to the night mode when being turned on, and the position lamp corresponds to the day mode when being turned off; in the daytime mode, the vehicle body control module 2 sends a backlight lighting signal and a 100% brightness value signal to the steering wheel switch control module 4, and controls the switch backlight to display at the 100% brightness value; in the night mode, the vehicle body control module 2 sends a backlight lighting signal and a brightness value signal to the steering wheel switch control module 4, and the control switch backlight displays according to the brightness value set by the sound module 1.
Furthermore, when the vehicle body control module receives the position light signal sent by the combination switch in the LIN signal mode and is in the off state, the vehicle body control module sends a backlight lighting signal to the steering wheel switch control module through the LIN signal at the moment when the vehicle body control module is in the daytime mode, the brightness value signal is 100% brightness, and the steering wheel switch control module lights the switch backlight according to the 100% brightness value. The user can clearly see each positive key symbol on the steering wheel switch, and the user can conveniently perform corresponding operation.
Furthermore, when the vehicle body control module receives the position light signal sent by the combination switch in an LIN signal mode and is in an on state, and when the vehicle body control module judges that the vehicle body control module is in a night mode at present, the vehicle body control module sends a backlight lighting signal to the steering wheel switch control module through the LIN signal, the brightness value is a backlight brightness value set through the sound control module, and the steering wheel switch control module lights the switch backlight according to the brightness value sent by the vehicle body control module. The situations that the operation of a driver is influenced due to dazzling backlight in a dark driving environment at night are avoided.
The invention has the beneficial effects that:
1) according to the invention, a new control module is not required to be additionally added, after a switch backlight brightness value selection interface is added in the sound control module, a corresponding brightness value signal is added, and the vehicle body control module receives the brightness value signal of the sound control module;
2) through setting for daytime, two kinds of mode at night, automobile body control module sends corresponding being shaded for steering wheel on-off control module and lights and the luminance value signal, no matter daytime or night, all can realize the switch button clear, the moderate not dazzling effect of luminance, promotes user's satisfaction and the science and technology of whole car and feels.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a capacitive touch steering wheel switch backlight control system according to an embodiment of the present invention;
fig. 2 is a flowchart of an overall method for controlling backlight of a capacitive touch steering wheel switch according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1, a capacitive touch type backlight control system for a steering wheel switch comprises a sound control module 1, a vehicle body control module 2, a combination switch 3 and a steering wheel switch control module 4, wherein the vehicle body control module 2 is respectively in communication connection with the sound control module 1, the combination switch 3 and the steering wheel switch control module 4;
the sound control module 1 is used for setting the switch backlight brightness and sending a corresponding brightness value signal to the vehicle body control module 2;
the combination switch 3 sends a position lamp turning-on or turning-off signal to the vehicle body control module 2 according to the turning-on or turning-off state of the position lamp switch;
the vehicle body control module 2 is configured to receive a brightness value signal sent by the sound control module 1, acquire a position lamp turning-on or turning-off signal (corresponding to a night mode when the position lamp is turned on and a day mode when the position lamp is turned off) sent by the combination switch 3, and send a switch backlight lighting signal and a brightness value signal to the steering wheel switch control module 4;
the steering wheel switch control module 4 receives the switch backlight lightening and brightness value signals sent by the vehicle body control module 2, and controls the steering wheel switch backlight to lighten according to the corresponding brightness value.
Further, the sound control module 1 and the vehicle body control module 2 transmit and receive signals in a CAN bus communication mode; the vehicle body control module 2 respectively transmits and receives signals with the combination switch 3 and the steering wheel switch control module 4 in a LIN line communication mode.
Preferably, the sound control module 1 is a HU.
Preferably, the vehicle body control module 2 is a BCM.
Preferably, the combination switch 3 is a CSC.
Preferably, the steering wheel switch control module 4 is a SKCU.
Example 2
A capacitive touch type steering wheel switch backlight control method comprises the following steps:
firstly, setting a switch backlight brightness value through a human-computer interaction interface of a sound control module 1, and sending the set backlight brightness value to a vehicle body control module 2 by the sound control module 1 in a CAN (controller area network) signal mode;
step two, the combination switch 3 acquires the current on or off state of the position lamp, and sends the on or off signal of the position lamp to the vehicle body control module 2 in a LIN signal mode;
step three, the vehicle body control module 2 receives the backlight brightness value signal sent by the sound control module 1 and the position lamp turn-on or turn-off signal sent by the combination switch 3, and sends the backlight turn-on signal and the brightness value signal to the steering wheel switch control module 4 in a LIN signal mode;
and step four, the steering wheel switch control module 4 receives the backlight lighting signal and the brightness value signal sent by the vehicle body control module 2, and controls the steering wheel switch backlight to be lit according to the corresponding brightness value.
Furthermore, the control method enables the backlight control working modes of the steering wheel switch to comprise a day mode and a night mode, and provides a user with adjustment options for switching the backlight brightness through a human-computer interaction interface on the sound control module. In the daytime mode, the steering wheel switch control module 4 controls the switch backlight to display at 100% brightness according to the corresponding signal sent by the vehicle body control module 2; in the night mode, the steering wheel switch control module 4 controls the switch backlight to display according to the brightness value set by the user on the menu interface of the sound module according to the corresponding signal sent by the vehicle body control module 2.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (6)
1. A capacitive touch type backlight control system for a steering wheel switch is characterized by comprising a sound control module, a vehicle body control module, a combination switch and a steering wheel switch control module, wherein the vehicle body control module is respectively in communication connection with the sound control module, the combination switch and the steering wheel switch control module;
the sound control module is used for setting the backlight brightness of the switch and sending a corresponding brightness value signal to the vehicle body control module;
the combined switch sends a position lamp turning-on or turning-off signal to the vehicle body control module according to the turning-on or turning-off state of the position lamp switch;
the vehicle body control module is used for receiving a brightness value signal sent by the sound control module, acquiring a position lamp turning-on or turning-off signal sent by the combination switch, and sending a switch backlight lighting signal and a brightness value signal to the steering wheel switch control module;
the steering wheel switch control module receives the switch backlight lightening and brightness value signals sent by the vehicle body control module and controls the steering wheel switch backlight to lighten according to the corresponding brightness value.
2. The capacitive touch type steering wheel switch backlight control system according to claim 1, wherein the sound control module and the vehicle body control module transmit and receive signals in a communication mode of a CAN bus; and the vehicle body control module respectively transmits and receives signals with the combination switch and the steering wheel switch control module in a LIN (local interconnect network) communication mode.
3. The control method of a capacitive touch steering wheel switch backlight control system of claim 1, comprising the steps of:
step one, setting a switch backlight brightness value through a human-computer interaction interface of a sound control module, and sending the set backlight brightness value to a vehicle body control module by the sound control module in a CAN (controller area network) signal mode;
step two, the combination switch acquires the current on or off state of the position lamp, and sends the on or off signal of the position lamp to the vehicle body control module in an LIN signal mode;
thirdly, the vehicle body control module receives a backlight brightness value signal sent by the sound control module and a position lamp turning-on or turning-off signal sent by the combination switch, and sends the backlight lighting signal and the brightness value signal to the steering wheel switch control module in a LIN signal mode;
and step four, the steering wheel switch control module receives the backlight lightening signal and the brightness value signal sent by the vehicle body control module and controls the steering wheel switch backlight to be lightened according to the corresponding brightness value.
4. The method as claimed in claim 3, wherein in the third step, the backlight control operation mode of the steering wheel switch preset by the body control module includes a day mode and a night mode, the position light corresponds to the night mode when turned on, and the position light corresponds to the day mode when turned off.
5. The control method of a capacitive touch steering wheel switch backlight control system according to claim 4, wherein when the vehicle body control module receives the position light signal transmitted by the combination switch in the LIN signal manner and is in the off state, and determines that it is currently in the daytime mode, the vehicle body control module transmits the backlight lighting signal and the 100% brightness value signal to the steering wheel switch control module, and the steering wheel switch control module lights the switch backlight according to the 100% brightness value.
6. The control method of a capacitive touch steering wheel switch backlight control system according to claim 4, wherein when the vehicle body control module receives the position light signal sent by the combination switch in the LIN signal manner as an on state, and determines that the vehicle body control module is currently in the night mode, the vehicle body control module sends a backlight lighting signal and a brightness value signal to the steering wheel switch control module through the LIN signal, the brightness value is a backlight brightness value set by the audio control module, and the steering wheel switch control module lights the switch backlight according to the brightness value sent by the vehicle body control module.
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| CN202110575073.3A CN113306394A (en) | 2021-05-26 | 2021-05-26 | Capacitive touch type steering wheel switch backlight control system and control method |
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| CN202110575073.3A CN113306394A (en) | 2021-05-26 | 2021-05-26 | Capacitive touch type steering wheel switch backlight control system and control method |
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Application publication date: 20210827 |
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