JP3625416B2 - Wiring abnormality confirmation device in wireless engine starter - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention belongs to the technical field of a wiring abnormality confirmation device in a wireless engine starting device capable of remotely starting a vehicle engine.
[0002]
[Prior art]
2. Description of the Related Art A so-called wireless engine starter is known that starts an engine by outputting an engine start signal wirelessly from a separated position while a cylinder key provided in a vehicle is in an OFF state. In such a starting device, when the starter motor is controlled to stop when the engine starts, or when the engine does not start despite the fact that the starter motor is driven, the starter motor It is required to stop the starter motor, and drive the starter motor again to try to start the engine. To perform such control, the starter confirms that the engine has started. It is essential to input a signal, that is, an engine start confirmation signal.
By the way, as a method for confirming such an engine start, there is an automatic start detection method that compares and detects a difference in battery voltage before and after the start, and when the engine starts, the generator enters a power generation state based on this. In general, a method of inputting a signal whose voltage has increased due to this power generation state as a power generation signal, that is, an engine start confirmation signal, is employed.
The in-vehicle device main body of the wireless engine starter is connected to a battery power supply circuit for securing the power supply, and it is easy to employ the former method of detecting automatic start using this. However, the use of the former is effective for passenger-type gasoline vehicles, but there are some light vehicles and diesel vehicles that cannot be automatically detected as in the former. In that case, the latter power generation signal is used to start the engine. A method of inputting as a confirmation signal is adopted. And when employ | adopting the latter, it is required to connect the control part of a vehicle-mounted apparatus main body with the wiring from which an electric power generation signal is output. As a wiring for outputting such a power generation signal, for example, there is a wiring provided between the L terminal (lamp terminal) provided in the generator and a charging warning light arranged on the meter panel of the passenger compartment. It is generally performed to connect the in-vehicle device main body.
[0003]
[Problems to be solved by the invention]
By the way, since such a wiring is combined with many other wirings instead of one, the wiring for outputting the power generation signal is searched from among the many wirings, and the wireless engine starting device is used. It is necessary to connect to the in-vehicle device body. For that purpose, it is required to find the wiring connected to the L terminal without fail and to check whether it is securely connected to this. For this purpose, it is necessary to use a measuring instrument such as a voltage detector or a tester. There is. However, the wireless engine starting device is often attached retrospectively to the vehicle, so there are cases where confirmation using the measuring instrument is not always performed, and when the user himself / herself attaches it. However, there is a problem that the connection to the wiring connected to the L terminal is not guaranteed.
Furthermore, assuming that the wiring connected to the L terminal and the vehicle-mounted main body can be connected, the connection wiring may be disconnected or short-circuited based on usage over time, resulting in a wiring abnormality. Confirmation of cases is also required to perform measurement using a measuring instrument one by one, and there are problems to be solved by the present invention.
[0004]
[Means for Solving the Problems]
The present invention has been created in view of the above circumstances and has been created for the purpose of solving these problems. The invention of claim 1 is mounted on a vehicle and receives an engine start signal transmitted wirelessly. the control unit for executing the engine start control, and configured to enter the engine start confirmation signal for confirming that the engine start has been made, the engine start confirmation signal to the generator power generation state by the engine start The control unit determines whether or not the engine start confirmation signal is abnormal. When it is determined that there is an abnormality, the control unit is connected to the control unit. state Upon providing the abnormal operation means to monitor actuating means is abnormal operation, the abnormal actuation means, the ignition key switch is a key operated ignition position And determines whether there is a signal input corresponding to the engine start confirmation signal, wireless, characterized in that it is set so as to malfunction monitoring actuation means when it is determined that there is the signal input It is a confirmation apparatus of wiring abnormality in an engine starting device. By doing so, it is possible to easily determine whether or not the input wiring of the engine start confirmation signal is abnormal by determining whether or not the monitor operating means is operating abnormally. In addition, the wiring for inputting the power generation signal as the engine start confirmation signal is connected to a wiring that outputs an output corresponding to the power generation signal regardless of the engine start, such as battery wiring, for example. I can confirm.
According to the second aspect of the present invention, an engine start confirmation signal for confirming that the engine has been started is provided to a control unit that is mounted on a vehicle and that receives the engine start signal transmitted wirelessly and executes engine start control. The engine start confirmation signal is a power generation signal that is output based on the fact that the generator is in a power generation state by starting the engine, and whether or not the engine start confirmation signal is abnormal in the control unit. When providing an abnormal operation means for abnormally operating the monitor operation means connected to the control section when it is determined that there is an abnormality, the abnormal operation means is a key of the ignition key switch. When the engine is started based on the operation, it is determined whether or not there is a signal input of an engine start confirmation signal, and it is determined that there is no such signal input It is a wiring abnormality confirmation apparatus in a wireless engine starting system according to claim that is configured to cause the abnormal operation to the monitor actuating means. By doing so, it is possible to easily determine whether or not the input wiring of the engine start confirmation signal is abnormal by determining whether or not the monitor operating means is operating abnormally. Moreover, it is possible to confirm wiring abnormality in the case of incorrect connection to a wiring to which a weak voltage not corresponding to a power generation signal is applied, for example, a fuel meter wiring.
[0005]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described. In the drawings, reference numeral 1 denotes a generator (alternator) disposed in an engine room ER. The generator 1 is provided with a B terminal, an S terminal, an IG terminal, and an L terminal. The B terminal is a battery terminal to which a battery wiring 3 for charging the battery 2 is connected. A power generation circuit and a rectifier circuit (IC regulator circuit) are connected to the B terminal in the engine room ER. The alternating current generated by the generator 1 is rectified into a direct current, and the rectified product is applied. The S terminal is a sensing terminal for viewing the difference between the voltage of the generator 1 and the voltage of the battery 2, and the S terminal is connected to a sensing wire 5 branched from the battery wire 3 as a parallel connection. The IG terminal is an ignition terminal for supplying operation power to the control circuit (ignition circuit) 7 of the ignition regulator, and is connected to the ignition wiring 7 a branched from the battery wiring 3 as a parallel connection via the IG terminal of the ignition key switch 6. Are connected to the ignition circuit 7. The L terminal is a lamp terminal, and the L terminal turns on / off the charging warning lamp 8 provided on the meter panel MP in the passenger compartment in order to notify the battery charging status (indicating whether the battery is charging or not charging). The charge confirmation wiring 9 is connected to an ignition wiring 7a between the ignition key switch 6 and the IG terminal. The IG terminal is connected to the aforementioned rectifier in the engine room ER.
Then, the key is inserted into the ignition key switch 6 to start the engine. In other words, when the key inserted into the ignition key switch 6 is operated from the ACC position (not shown) to the STT position (starting position) via the IG position (ON position), the inhibitor switch IHS (operates the shift lever to parking or neutral). Then, power is supplied to the starter motor STM via a switch that is turned on, and the starter motor STM is driven. When the engine is started and the key is returned from the STT position to the IG position, the STT terminal of the ignition key switch 6 is turned OFF, the starter motor STM is stopped, the engine is in a driving state, and the generator 1 is in a power generation state. Become. In this series of engine starting processes, the charging warning lamp 8 is first lit by receiving power supply from the battery 2 by operating the key to the IG position. When the engine is started and the generator 1 starts generating power, the generated voltage is applied to the L terminal, the current does not flow, and the charging warning 8 is turned off. Since the principle is the same as that of the prior art, its details are omitted.
[0006]
Reference numeral 10 denotes an in-vehicle device main body of the wireless engine starting device, and the control unit 11 built in the device main body 10 is not affected by the ignition key switch 6 and is connected via the auxiliary battery wiring 3a. It is connected to the battery wiring 3 so that battery power is always supplied. Further, the control unit 11 is connected to the above-described starter wiring STT and ignition wiring 7a through the auxiliary starter wiring 12 and auxiliary ignition wiring 13 without being affected by the ignition key switch 6, respectively. When a radio signal for starting the engine is output from the radio unit 15 and this is input to the control unit 11 via the antenna, the control unit 11 outputs an ignition signal and a starter signal to the corresponding wirings 12 and 13. Thus, the engine is started wirelessly without using the key operation.
[0007]
Further, the control unit 11 is connected to a charge confirmation wiring 9 connected to the L terminal of the generator 1 via an engine start confirmation wiring 14. Then, the control unit 11 is set to take in a power generation signal indicating an increase in voltage when the engine is started and the generator is in a power generation state as an engine start signal, and the start control of the starter motor STM that is wirelessly started, When there is no engine start signal, the starter motor STM is stopped when a predetermined time has elapsed, and thereafter, the engine start control is performed such as outputting a drive signal to the starter motor STM again to try restarting. . This engine restart is repeated, for example, three times. If the engine is not started despite the three restarts, the wireless engine start control is set to be stopped. Since this is the same as the conventional method, the details thereof are omitted.
[0008]
The in-vehicle device body 10 is provided with a monitor lamp 16 at a visible position such as the case surface. For example, the controller 11 controls the lighting of the monitor lamp 16 when the engine is started by wireless operation. The control procedure software for the monitor lamp lighting control and the monitor lamp lighting control at the time of key operation is incorporated, and this will be described in turn. First, the monitor lamp lighting control at the time of engine start by the wireless operation of the former will be described with reference to FIG. Here, it is first determined whether or not a wireless engine start signal has been input. If YES is determined, the controller 11 outputs an ON command to the auxiliary ignition wiring 13 to turn on the ignition wiring 7a. To. In this state, it is determined whether or not the signal input from the L terminal via the engine start check wiring 14 exceeds a threshold value (for example, set to 7 V), that is, the state of the power generation signal. When it is determined that the power generation signal is generated, it is determined that the engine has already been started, and the starter motor STM drive stop command is output to the auxiliary starter wiring 12 and the monitor lamp 16 is turned off. On the other hand, when there is no power generation signal input (below the threshold), that is, it is determined that the engine is not started, the lighting control of the monitor lamp 16 is performed, the engine start control is permitted, and the engine start control is executed. Is done. When the engine is started based on this, the generator 1 is driven to be in a power generation state, and a voltage that is higher than the threshold value is output as a power generation signal from the L terminal. 11, the control unit 11 outputs a starter motor STM stop command to the auxiliary starter wiring 12 and outputs a turn-off command to the monitor lamp 16. On the other hand, if the control unit 11 determines that there is no power generation signal output exceeding the threshold value from the L terminal even if the starter motor STM is driven for a preset time (for example, 3 seconds), the control unit 11 Then, the drive of the starter motor STM is stopped, and the monitor lamp 16 is turned off, and then the monitor lamp 16 is turned on again to re-execute the engine start control. The control unit 11 determines that the engine is not started even if the execution of the engine start control reaches a preset number of times (for example, 3 times), that is, there is no power generation signal input exceeding the threshold value from the L terminal. In this case, further execution of the engine start control is stopped, and the monitor lamp 16 is turned off.
[0009]
In this way, the lighting control of the monitor lamp 16 is executed in parallel with the engine start control by radio, but whether or not the engine start confirmation wiring 14 is normal is confirmed by checking whether the monitor lamp 16 is turned on or off. I can judge. In other words, when a wireless engine start signal is input, if it is normal, a similar lamp 16 is lit before the engine is started, but if this is not lit, a voltage exceeding the threshold is applied due to a short circuit. There is a possibility of being disconnected or disconnected, and the presence of such wiring abnormality is determined. Also, the engine is officially started upon receiving a radio signal, but there is an abnormality when the monitor lamp 16 does not turn off. In this case, a power generation signal exceeding the threshold is applied to the engine start confirmation wiring 14. This means that there is an abnormality when a power generation signal exceeding the threshold value is not applied due to a short circuit.
Incidentally, if such an abnormality has occurred in the monitor lamp 16, if the charging warning lamp 8 is in the same lighting or extinguished state, it is not an abnormality on the engine start confirmation wiring 14 side, but a generator. It is determined that the abnormality is on the first side.
[0010]
Next, the lighting control of the monitor lamp at the time of key operation will be described based on FIG. When the ignition key switch 6 is key-operated to turn on the IG contact, the control unit 11 determines whether or not the engine is in an engine starting state based on the presence or absence of a power generation signal input exceeding the threshold value from the L terminal. When it is determined that there is no input of a power generation signal that exceeds the threshold value, the control unit 11 outputs a lighting command for the monitor lamp 16. On the other hand, if the monitor lamp 16 is not lit before the engine is started, it is confirmed that the engine start check wiring 14 is connected to a wiring (for example, battery wiring) through which a voltage exceeding the threshold flows due to an incorrect connection. Is done. On the other hand, the monitor lamp 16 is turned on, and the engine is started by operating the key to the engine starter position STT. However, the generator 1 starts generating power when the engine is started, and the voltage exceeding the threshold is generated. Output from the L terminal as a signal. Then, this power generation signal is input to the control unit 11 via the engine confirmation wiring 14, and the control unit 11 that has input the signal turns off the monitor lamp 16 because the engine start is confirmed. When the monitor lamp 16 is not turned off even though the engine is started by the key operation in this manner, the control unit 11 is based on the fact that the power generation signal exceeding the threshold is not input from the engine start confirmation wiring 14. As the cause, there is a case where the engine start confirmation wiring 14 is forgotten or connected to a low voltage wiring (for example, a wiring for a fuel meter) that does not exceed the threshold due to incorrect wiring, and these can be confirmed.
In this control, after the key operation of the ignition key switch 6 at the ignition position IG position, the engine has not started even if a preset time (for example, 30 seconds) has elapsed, that is, no power generation signal has been input. Therefore, it is determined that a time-out occurs and an error ON is generated and the monitor lamp 16 is turned off.
[0011]
In the embodiment of the present invention configured as described above, first of all, it is confirmation whether or not the engine start confirmation wiring 14 drawn from the in-vehicle device body 10 is securely connected to the charge confirmation wiring 9. The key is operated to turn on the ignition. In this state, the control unit 11 inputs a signal indicating that the ignition has been turned on via the auxiliary ignition wiring 13, and in response to this, the control unit 11 exceeds the threshold corresponding to the power generation signal from the engine start confirmation wiring 14. It is determined whether there is a voltage signal input. In this state, since the engine has not yet been started, it is abnormal that the power generation signal is input, and when it is determined that the abnormality is present, the monitor lamp 16 remains off, but there is no signal input. That is, the monitor lamp 16 is turned on when it is determined to be normal. By performing this confirmation, it can be confirmed that the engine start confirmation wiring 14 has been connected to a wiring to which a voltage exceeding a threshold value is applied so that the battery voltage is applied regardless of the engine start.
[0012]
Next, when it is confirmed that the monitor lamp 16 is turned on as normal, the engine is started by operating the ignition key switch 6 to the STT position. When the engine is started and the power generation signal output from the L terminal is input to the control unit 11 via the engine start confirmation wiring 14, the control unit 11 determines that the monitor is normal and turns off the monitor lamp 16, but there is no input. In this case, it is determined that there is an abnormality, and the monitor lamp 16 is kept on. As a result, when the engine lamp is not turned off even when the engine is started by operating the ignition key switch 6, the engine start confirmation wiring is different from the wiring for outputting the power generation signal (wiring to which a voltage equal to or lower than the threshold is applied). It is confirmed that the wiring is incorrect due to connection to or forgetting wiring.
[0013]
On the other hand, when the engine start confirmation wiring 14 is accurately connected to the charge wiring 9, it is possible that an abnormality occurs in the wiring that causes the engine start confirmation wiring 14 to be disconnected or short-circuited due to a change over time due to use. This confirmation is confirmed in the process of wirelessly starting the engine. That is, when a wireless engine start signal is input from the wireless device 15, the control unit 11 determines whether or not there is a voltage signal input that exceeds a threshold corresponding to the power generation signal before outputting the engine start signal. Since it is a stage before starting the engine, normality is confirmed by the absence of the signal input, and the monitor lamp 16 is turned on based on this, but it is abnormal if it is determined that there is a signal input. As a result, the monitor lamp 16 is not turned on. By confirming this, a wiring abnormality is confirmed.
When it is determined that the engine is normal, the control unit 11 outputs an engine start command to start the engine. When the engine is started, a power generation signal is output from the L terminal. The control unit 11 controls the monitor lamp 16 to be turned off if it is input normally via the engine start check wiring 14. On the other hand, if the power generation signal is not input even though the engine has been started, the monitor lamp 16 will continue to be lit as being abnormal, and this confirmation also confirms the abnormality of the engine start confirmation wiring 14. Will be able to.
[0014]
As described above, in the embodiment in which the present invention is implemented, by confirming the lighting state of the monitor lamp 16, the engine start confirmation wiring 14 is securely connected to the wiring from which the power generation signal is output as the engine start confirmation. As a result, it is possible to check whether there is an incorrect connection, and even if a normal connection has been made, then it can be confirmed whether the wiring is abnormal due to a disconnection or short circuit. The confirmation work using the container becomes unnecessary. As a result, connection mistakes can be eliminated.
[0015]
Moreover, in this case, since the lighting control of the monitor lamp 16 for confirming the erroneous connection is the same as the turning-on / off of the charging warning lamp 9 at the time of starting the engine, it can be confirmed without causing a sense of incongruity, Reliability can be improved. Further, since the monitor lamp 16 that is once turned on is controlled to be turned off when the engine start control is finished, there is an advantage that unnecessary battery consumption can be avoided.
[0016]
Needless to say, the present invention is not limited to the above embodiment, and the lighting of the monitor lamp is not necessarily the same as the lighting of the charging warning lamp. You may alert | report with sounds, such as. And the abnormality of the engine start confirmation wiring can be confirmed only at the time of necessary monitoring. For this reason, for example, it is always turned off, and a changeover switch that is turned on only at the time of monitoring is provided, or the monitor operating means is detachable. It can also be implemented by attaching it only when confirmation is necessary. In the case of this detachable type, in addition to attaching / detaching the monitor operating means itself, the monitor operating means is connected to the lead wire, and the plug provided at the tip of the lead wire is inserted / removed into / from the plug provided on the in-vehicle apparatus main body side, etc. And can be connected.
[Brief description of the drawings]
FIG. 1 is a wiring circuit diagram of an in-vehicle device body of a wireless engine starter.
FIG. 2 is a flowchart showing monitor lamp lighting control at the time of engine start by wireless operation.
FIG. 3 is a flow chart showing lighting control of a monitor lamp during key operation.
[Explanation of symbols]
2 Battery 6 Ignition key switch 8 Charging warning lamp 10 In-vehicle device body 11 Control unit 16 Monitor lamp

Claims (2)

Is mounted on a vehicle, the control unit for executing the engine start control receives the engine start signal wirelessly transmitted, and configured to enter the engine start confirmation signal for confirming that the engine start has been made, the The engine start confirmation signal is a power generation signal that is output based on the fact that the generator is in a power generation state due to engine start, and the control unit determines whether or not there is an abnormality in the engine start confirmation signal. In providing abnormal operation means for abnormally operating the monitor operation means connected to the control unit when it is determined that there is an abnormality, the abnormal operation means is in a state where the ignition key switch is key-operated at the ignition position. To determine whether or not there is a signal input corresponding to the engine start confirmation signal, and if it is determined that the signal has been input, the monitor is activated. Wiring error confirmation apparatus in a wireless engine starting device, characterized in that it is set to stage so as to malfunction. An engine start confirmation signal for confirming that the engine has been started is input to a control unit that is mounted on the vehicle and that receives the engine start signal transmitted wirelessly and executes engine start control. The engine start confirmation signal is a power generation signal that is output based on the fact that the generator is in a power generation state due to engine start, and the control unit determines whether or not there is an abnormality in the engine start confirmation signal. When it is determined that there is an abnormal operation means for abnormally operating the monitor operation means connected to the control unit, the abnormal operation means starts the engine based on the key operation of the ignition key switch. If it is determined that there is a signal input for the engine start confirmation signal, and if it is determined that there is no signal input, Wiring error confirmation apparatus in a wireless engine starter apparatus characterized by being configured to cause the normal operation.

Images