JP2523302Y2 - Engine starter - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an engine starting device, and more particularly to a starting device for automatically starting an automobile engine by using a timer or a radio wave from a remote place.

[0002]

2. Description of the Related Art Conventionally, there is a starting device for remotely starting an engine of an automobile (hereinafter, referred to as an A / T vehicle) having an automatic transmission having a shift interlock device, for example, by using radio waves. In this starting device, the starting condition is that the vehicle door is closed, the shift lever is in the parking range, and the parking brake is applied. If not, the engine is not started. Further, even after the start, if any one of the above conditions is not satisfied, the engine is stopped.

FIG. 4 shows the starting circuit. In the same figure, by operating the ignition key,
The first ignition switch SW1 and the second ignition switch SW2 provided in the key cylinder 1 rotate, and are connected to predetermined contacts based on the operation amount. That is, in the first ignition switch SW1, the accessory contact Acc, the first ignition contact Ig
1 or the first starter contact ST1 as appropriate.
The power of the battery B is output as the power of a non-ignition system such as a shift lever interlock device through the ignition contact Ig1.

On the other hand, a second ignition switch SW
2, the second ignition contact Ig2 or the second ignition contact Ig2
Is connected as appropriate to the starter contact ST2, and the power of the battery B is output as the power for the ignition system via the second ignition contact Ig2.
The power supply of the battery B is output as a starter power supply via 2.

A first ignition relay contact Rig is connected to the first ignition switch SW1.
1 and the first starter relay contact Rst1 are connected in parallel. The first ignition relay contact Rig1 is a normally open contact, one end of which is connected to the first ignition contact Ig1 and the other end of which is connected to the battery B. The first starter relay contact Rst1 is a normally open contact, one end of which is connected to the second starter relay contact Rst1.
, And the other end is connected to the battery B.

Further, a second ignition relay contact and a second starter relay contact Rst2 are respectively arranged in parallel with the second ignition switch SW2. Then, the second ignition relay contact Ri
g2 is a normally open contact, one end of which is connected to the second ignition contact Ig2, and the other end of which is connected to the battery B. Second starter relay contact Rst
2 is a normally open contact, one end of which is the starter ST2.
And the other end is connected to the battery B.

Then, each relay contact Rig1, Rig
2, Rst1 and Rst2 are the respective relay coils CR
ig1, CRig2, CRst1, and CRst2 are closed based on the power supply. Each relay contact Rig1, Rig2
When the ignition switches SW1 and SW2 are not operated, the power of the battery B is supplied to the relay contacts Rig1, Rig2 and Rg2 even when the ignition switches SW1 and SW2 are not operated.
Power is supplied as an ignition / non-ignition system power supply, a starter power supply, and the like via Rst1 and Rst2, and the engine and the like are started.

[0008] Each relay coil CRig1, CRig2,
The energization of CRst1 and CRst2 is controlled by a start control circuit. That is, when the receiver receives a radio wave instructing the start of the engine from outside the vehicle, the start control circuit determines whether each of the relay coils CRig1, CRig2, CRst1, CRs.
The drive circuit for energizing t2 is driven.

The start control circuit includes a courtesy switch DS that is turned on when the door is opened, a BS that is turned on when the parking brake is released, and a shift range switch that is turned on when the shift lever is in a range other than the parking range. An ON signal from SS is input. Then, when any one of the switches DS, BS, SS is turned on, the start control circuit 10 sets each relay coil CRig.
1, CRig2, CRst1, and CRst2 are cut off. That is, in the starting state, the power of the non-ignition system is also supplied, and the power is also supplied to the interlock device so that the shift lever can be operated in an appropriate range. When one switch is turned on, all relay contacts Rig1, R
ig2, Rst1 and Rst2 are closed to shut off the power,
The engine has been stopped.

[0010]

However, in the above-mentioned starting device, when the vehicle is started in a state where the engine is started by radio waves, since the door is opened, the courtesy switch DS is always turned on and the engine is stopped. Therefore, it has to be restarted by a key, so it is troublesome.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and its purpose is to prevent the engine from being stopped even if a driver opens a door while the engine is running. An object of the present invention is to provide an engine starting device that can surely prevent theft.

[0012]

According to a first aspect of the present invention, there is provided a door opening / closing detecting means for detecting an open / closed state of a door, and a parking brake detecting means for detecting whether or not a parking brake is released. A shift lever position detecting means for detecting a shift range of the shift lever, a door is closed based on each of the detecting means, the parking brake is not released, and only when the shift lever is in the parking range, the remote control by radio waves. In an engine starting device for an automobile equipped with an automatic transmission having a shift interlock device that starts an engine in response to a command or a command from a timer, shutting off the operation power supply of a starter motor drive device and a shift interlock device after the engine starts. The gist is an engine starter provided with the means.

According to a second aspect of the present invention, a door open / close detecting means for detecting a door open / close state, a parking brake detecting means for detecting whether or not a parking brake is released, and a shift lever position for detecting a shift range of the shift lever. A shift means for starting the engine by a remote command by radio or a command by a timer only when the door is closed, the parking brake is not released and the shift lever is in the parking range based on the detecting means. In an engine starting device for an automobile having an automatic transmission having an interlock device, a shut-off unit that shuts off operation power of a starter motor driving device and a shift interlock device after the engine starts, and a door open / close detection unit after the engine starts. When it detects that the door has been opened, If no operation Nisshonki is, the engine starting apparatus provided with a stop means for stopping the engine and its gist.

[0014]

According to the first aspect of the present invention, after the engine is started, the operating power of the starter motor driving device and the shift interlock device is shut off by the shutoff means. As a result, the shift lever remains locked in the parking state, and cannot transmit even though the engine is started.

According to a second aspect of the present invention, in addition to the first aspect, after the engine is started, if the ignition key is not operated within a predetermined time after the door is opened by the stopping means, the engine stops.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is embodied in an engine starter for an A / T vehicle equipped with a shift lock device and a key interlock device will be described with reference to FIGS.

FIG. 1 shows a control circuit of the engine starter. A key remind switch SW is provided in the key cylinder 1.
0, a first ignition switch SW1 and a second ignition switch SW2. One end side contacts of these switches SW0, SW1, and SW2 are connected to the battery B.

The other end of the key remind switch SW0 is connected to a controller C as a shutoff means and a stop means. When an ignition key (not shown) is inserted into the key cylinder 1, the key remind switch SW0 is turned on, and an ON signal is output to the controller C. Controller C
Is based on this ON signal,
An ON signal is output to one base terminal.

The first and second ignition switches SW1 and SW2 are appropriately connected to an accessory contact Acc, a first ignition contact Ig1 and a first starter contact ST1 based on a rotation operation amount of an ignition key. It has become.

The accessory contact Acc is connected to an accessory device such as a radio or an audio device. Then, when the first ignition switch SW1 is connected to the accessory contact Acc, the power of the battery B is output to the accessory device as the accessory power.

[0021] The first ignition contact Ig1 is connected to a non-ignition device including a shift interlock device. The shift interlock device is a device that drives an actuator (not shown) to expand and contract to lock a shift lever (not shown). Then, when the first ignition switch SW1 is connected to the first ignition contact Ig1, the power of the battery B is supplied to the shift interlock device.

The shift interlock device is a battery B
The shift lever is unlocked when power is supplied from the device. When the power is not supplied from the battery B, the shift interlock device does not release the lock of the shift lever. Therefore, the shift lever can be switched from the parking position only when the power of the battery B is supplied to the shift interlock device.

The first starter contact ST1 is connected to one end of a relay coil CRst1 via a diode D1. The other end of the relay coil CRst1 is connected to the collector terminal of the transistor Tr1 whose emitter is grounded,
The base terminal of the transistor Tr1 is connected to the controller C. Therefore, the ignition key is inserted into the key cylinder 1 and the first starter contact ST1
Is connected, the relay coil CRst1 is excited. The normally open relay contact Rst1 is closed based on the excitation of the relay coil CRst1.

One end of the relay contact Rst1 is connected to a starter motor driving device, and the other end is connected to the battery B. Therefore, when the relay coil CRst1 is excited and the relay contact Rst1 is closed, the power of the battery B is output to the starter motor driving device. The starter motor drive device drives a starter motor (not shown) when power is supplied from a battery B. In addition,
One end of the relay coil CRst1 is connected to a controller C via a diode D5, so that a drive power can be input from the controller C as well.

On the other hand, the second ignition switch SW2 is appropriately connected to a second ignition contact Ig2 and a second starter contact ST2. The second ignition contact Ig2 is connected to an ignition device. Further, the second ignition switch SW2 is connected to the second ignition contact Ig2.
, The power of the battery B is supplied to the ignition device.

The second starter contact ST2 is connected to one end of a relay coil CRst2 via a diode D2. The other end of the relay coil CRst2 is connected to the collect terminal of the transistor Tr1. Therefore, the second ignition switch SW2
Is connected to the second starter contact ST2, the relay coil CRst2 is excited and the normally open contact relay contact Rs
At t2, the circuit is closed. This relay contact Rs
One end of t2 is connected to the starter motor driving device, and the other end is connected to the battery B.

Therefore, when the relay coil CRst2 is excited and the relay contact Rst2 is closed, the power of the battery B is output to the starter motor driving device. The starter motor drive device drives the starter motor when power is supplied from the battery B. In addition, one end of the relay coil CRst2 is connected to the controller C via the diode D6, so that driving power can be input from the controller C as well.

When the ignition key is released at a position where the first and second ignition switches SW1 and SW2 are connected to the first and second starter contacts ST1 and ST2, the ignition key is provided with a spring (not shown). The force is maintained in a state of being connected to the first and second ignition contacts Ig1 and Ig2.

The first ignition contact Ig1 is connected to a normally open first ignition relay contact Rig.
The other end of the first ignition relay contact Rig1 is connected to the battery B.

The first ignition relay contact Rig1 closes when the relay coil CRig1 is energized, and supplies battery power to the non-ignition system including the shift interlock device. One end of the relay coil CRig1 is connected to a controller C via a diode D3, and the other end is connected to a collect terminal of a transistor Tr2 whose emitter is grounded. The base terminal of the transistor Tr2 is connected to the controller C, and is turned on based on an on signal from the controller C.
The relay coil CRig1 is excited.

On the other hand, the second ignition contact Ig
2 is a normally open contact second ignition relay contact Ri
g2 is connected to one end, and the other end of the second ignition relay contact Rig2 is connected to the battery B. Then, the second ignition relay contact Ri
g2 closes when the relay coil CRig2 is excited to supply battery power to the ignition device.

One end of the relay coil CRig2 is connected to a controller C via a diode D4, and the other end is connected to a collect terminal of a transistor Tr3 whose emitter is grounded. The base terminal of the transistor Tr3 is connected to the controller C, and is turned on based on an on signal from the controller C, and the relay coil CRig
2 is excited.

The controller C has a courtesy switch DS as door opening / closing detecting means for outputting an ON signal when the door is opened, and a brake switch for outputting an ON signal when the parking brake as parking brake detecting means is released. A shift range switch SS as a shift lever position detecting means for outputting an ON signal when the BS and the shift lever are in a range other than the parking range is connected.

Further, a wireless device (hereinafter referred to as a receiver) M1 is connected to the controller C. This receiver M
Numeral 1 communicates with a wireless device (hereinafter referred to as a transmitter) M2 disposed indoors at a place different from the automobile. The transmitter M2 is provided with a start button (not shown), and the start button is pressed. When the user presses the start button, the transmitter M2 transmits a pulse signal to the receiver M1. When receiving the pulse signal from the transmitter M2, the receiver M1 outputs an engine start signal to the controller C.

When no ON signal is inputted from all three switches of the courtesy switch DS, the brake switch BS and the shift range switch SS, and when an engine start signal is inputted from the receiver M1, each of the transistors C Tr1, Tr2, Tr3
Output an ON signal to the base terminal of the.
That is, each relay coil CRig1, CRst1, CRi
g2, CRst2 are excited, and each relay contact Rig1, R
st1, Rig2, and Rst2 are closed.

That is, when the receiver M1 receives the pulse signal transmitted from the transmitter M2, the power supply of the battery B is switched to each relay contact Rig without rotating the ignition switches SW1 and SW2 with the ignition key.
The power is supplied to the shift lock device, the ignition device, and the starter motor drive device via the first, Rst1, Rig2, and Rst2 so that the engine can be started.

After starting the engine, the controller C stops the ON signal to the base terminal of the transistor Tr2. That is, the first ignition relay contact Rig1, which has been closed, is opened, and the power supply of the battery B to the shift lock device is stopped. Therefore, the shift lever is locked. That is, even if the engine is started, the shift lever cannot be switched from the parking position or the neutral position to the traveling position.

After the engine is started, the controller C stops the ON signal to the base terminal of the transistor Tr1. That is, the power supply to the starter motor driving device is cut off to stop driving the starter motor.

The controller C has a timer T
The controller C starts the engine based on the engine start signal from the receiver M1 and then activates the timer T when the door is opened, that is, when an ON signal is input from the courtesy switch DS. It is made to let. Then, during a lapse of 10 seconds from the time when the door is opened, the controller C controls each of the ignition switches SW1, SW2 and each of the ignition contacts Ig.
1 and Ig2 are not connected, the transistor T
Turn off r3. That is, the controller C opens the second ignition relay contact Rig2 in the closed state, cuts off the supply of power to the ignition device, and stops the engine.

The controller C releases the parking brake before the doors are opened and the ignition switches SW1 and SW2 are connected to the ignition contacts Ig1 and Ig2, that is, the controller C receives an ON signal from the brake switch BS. Also, the engine is stopped by turning off the transistor Tr3.

Next, the operation of the engine starting device configured as described above will be described with reference to the flowcharts of FIGS. First, when the controller C inputs an engine start signal from the receiver M1 in step 101, the controller C proceeds to the next step.

In steps 102 to 104, the controller C receives an ON signal from one of the switches, that is, when the door is open, when the shift lever is in a position other than the parking range, or when the parking brake is released. If it has been released, the processing operation ends without starting the engine even if an engine start signal is input from the receiver M1 in step 101.

On the other hand, the controller C performs steps 102 to
In step 104, if no ON signal is input from any of the courtesy switch DS, shift range switch SS, and brake switch BS, that is, if the door is closed, the shift lever is set to the parking range, and If the brake is operating, the routine proceeds to step 105.

In step 105, the controller C
Turns on the transistors Tr1, Tr2, Tr3 and turns on the relay contacts Rig1, Rst1, Rig2, Rst2.
Is closed. That is, each device except the accessory device is operated to start the engine.

Then, the controller C proceeds to step 106
, Immediately after the engine starts, the first transistor T
r1 and the second transistor Tr2 are turned off. That is, the relay contacts Rig1, Rst1, and Rst2 are opened, and the supply of battery power to the starter motor drive device and the shift interlock device is stopped.

That is, the drive of the starter motor is stopped, and the shift lever cannot be switched from the parking range. Therefore, even if the engine is started, the shift lever cannot be switched to the travel range, and the vehicle cannot travel in this state.

Next, at step 107, the controller C determines whether or not the door has been opened. When an ON signal is input from the courtesy switch DS, that is, when the door is opened, the process proceeds to step 108, and the timer T starts measurement for 10 seconds. Then, in step 109, the controller C determines whether 10 seconds have elapsed since the door was opened.

If 10 seconds have elapsed, it is determined in step 110 whether the parking brake has been released. Then, when the brake is released, the third transistor Tr3 is turned off in step 112.
That is, the controller C opens the relay contact Rig2 to cut off the supply of battery power to the ignition device, and stops the engine.

On the other hand, when the parking brake is not released, the controller C proceeds to step 111, and checks whether the first and second ignition switches SW1, SW2 are connected to the first and second ignition contacts Ig1, Ig2. Is determined. That is, after the door is opened, the user operates the ignition key to rotate the first and second ignition keys.
It is determined whether the ignition switches SW1 and SW2 are connected to the first and second ignition contacts Ig1 and Ig2.

The controller C is connected to the first and second ignition switches SW1 and SW2 and the first and second ignition switches SW1 and SW2.
When it is determined that the ignition contacts Ig1 and Ig2 are connected, in step 112, the third transistor Tr3 is turned off to open the relay contact Rig2.

At this time, since the second ignition switch SW2 is connected to the second ignition contact Ig2, the power of the battery B is supplied to the ignition device. Therefore, the engine does not stop. Further, at this time, since the first ignition switch SW1 and the first ignition contact Ig1 are connected, the power of the battery B is supplied to the shift interlock device. Therefore, the lock of the shift lever is released, and the shift lever can be switched from the parking range to the travel range.

At this time, the relay contacts Rst1, Rst2
Is not closed, that is, since the starter contacts ST1 and ST2 are not directly connected to the starter motor drive, power is not supplied to the starter motor drive. as a result,
Overrun of the starter can be prevented.

On the other hand, the controller C
If it is determined that the first and second ignition switches SW1 and SW2 are not connected to the first and second ignition contacts Ig1 and Ig2 within 10 seconds after the door is opened at step 3, The third transistor Tr3 is turned off. At this time, the supply of battery power to the ignition device is cut off, and the engine is stopped.

As described in detail above, according to the engine starter for an A / T vehicle provided with the shift interlock device and the key interlock device of the present embodiment, the engine is started based on the engine start signal of the receiver M2. When the driver gets into the vehicle with the vehicle started, the first and second ignition switches SW1, SW2 and the first and second ignition contacts Ig1, Ig2 are operated within 10 seconds by operating the ignition key even when the door is opened. When connected, the first and second ignition contacts Ig1, Ig2
Since the power is supplied to the ignition device through the, the engine does not stop.

Therefore, the trouble of restarting by the ignition key as in the prior art can be eliminated, the durability of the starter motor can be improved, and the deterioration of the battery B can be prevented.

When the engine is started based on the engine start signal of the receiver M2, for example, a person other than a user who does not have an ignition key forcibly opens the door and gets into the vehicle to drive the vehicle. Even if it is attempted, if the first and second ignition switches SW1 and SW2 cannot be connected to the first and second ignition contacts Ig1 and Ig2 by operating the ignition key within 10 seconds after opening the door, the engine stops. Therefore, there is no risk of car theft.

Further, while the engine is started based on the engine start signal of the receiver M1 and the first and second ignition switches SW1 and SW2 are connected to the first and second ignition contacts Ig1 and Ig2. ,
Since the shift lever is locked in the parking range by the shift interlock device, theft is also prevented here.

Further, the engine is started based on the engine start signal of the receiver M2, while the first and second ignition switches SW1, SW2 are connected to the first and second ignition contacts Ig1, Ig2. When the parking brake is released, the engine is stopped, so that safety is improved.

The present invention is not limited to the above embodiment. For example, a timer may be provided in place of starting the engine by the wireless devices M1 and M2, and the engine may be started under the above-mentioned conditions after a predetermined time. May be applied to the type of automobile.

[0060]

As described above in detail, according to the present invention, even if the driver opens the door while the engine is running, the engine can be kept from being stopped, and theft can be reliably prevented. It has an excellent effect that it can be performed.

[Brief description of the drawings]

FIG. 1 is an electric circuit diagram showing a control circuit of an engine starting device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing an operation of a controller.

FIG. 3 is a flowchart showing the operation of the controller.

FIG. 4 is an electric circuit diagram showing a control circuit of a conventional engine starting device.

[Explanation of symbols]

C: controller as shutoff means and stop means, T ...
Timer, DS: Catesis switch as door open / close detecting means, BS: Brake switch as parking brake detecting means, SS: Shift range switch as shift lever position detecting means

Claims (2)

(57) [Scope of request for utility model registration] 1. A door opening / closing detecting means (DS) for detecting a door opening / closing state, a parking brake detecting means (BS) for detecting whether a parking brake is released, and a shift lever position for detecting a shift range of a shift lever. Detection means (SS)
Only when the door is closed based on the detection means (DS, BS, SS), the parking brake is not released and the shift lever is in the parking range, a remote command by radio wave or a command by a timer is provided. (C) an engine starting device for an automobile equipped with an automatic transmission having a shift interlock device for starting an engine by shutting off operation power of a starter motor drive device and a shift interlock device after starting the engine.
An engine starting device comprising: 2. A door opening / closing detecting means (DS) for detecting a door opening / closing state, a parking brake detecting means (BS) for detecting whether or not a parking brake is released, and a shift lever position for detecting a shift range of a shift lever. Detection means (SS)
Only when the door is closed based on the detection means (DS, BS, SS), the parking brake is not released and the shift lever is in the parking range, a remote command by radio wave or a command by a timer is provided. (C) an engine starting device for an automobile equipped with an automatic transmission having a shift interlock device for starting an engine by shutting off operation power of a starter motor drive device and a shift interlock device after starting the engine.
And stopping means (C) for stopping the engine if the ignition key is not operated within a predetermined time when the door opening / closing detecting means detects that the door is opened after the engine is started. An engine starting device characterized by the above-mentioned.