JP2006177339A - Start controller - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a start controller capable of restraining or suppressing a condition in which a starter switch and an accessory switch are simultaneously turned on and continuing ordinary switch control in a scope in which the starter switch and the accessory switch are not simultaneously turned on. <P>SOLUTION: The accessory switch SWa and an ignition switch SWi are connected with a sub-relay RL1, the starter switch SWs is connected with a sub-relay RL2, and the sub-relay RL2 is turned off when welding occurs in the starter switch SWs. When weld-bond occurs in the accessory switch SWa, off-control of the starter switch SWs is performed or on-control of the starter switch SWs is not performed. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a start control device that performs start control of a vehicle based on a signal received from a remote operation terminal, or in particular, a start that prevents an accessory switch and a starter switch from being turned on simultaneously. The present invention relates to a control device.

  A vehicle generally includes a starter switch that controls engine start, an ignition switch that controls engine ignition, and an accessory switch that controls power supply to an on-vehicle electric device.

  Here, when the starter switch is turned on, a large amount of electric power is required for the rotation of the starter motor. Therefore, if the accessory switch is turned on at the same time, the power supply to the in-vehicle electric device becomes unstable.

  For this reason, conventionally, these switches (starter switch, ignition switch, accessory switch) are configured to be physically turned on and off by the operation of the ignition key by the driver, and the starter switch and the accessory switch are turned on simultaneously. It was prevented from becoming.

  However, in recent years, there has been a demand for executing vehicle start control in a state in which an ignition key is not inserted by a remote operation terminal such as a remote key, and a configuration for performing on / off control of a starter switch, an ignition switch, and an accessory switch by a relay circuit. It has been adopted.

  However, since the starter switch and the accessory switch control a large current, contact welding of the switch (control relay) may occur, and the starter switch and the accessory switch may be turned on at the same time by the welding.

  Thus, Patent Document 1 discloses a technique for turning off other control relays and then turning off a sub-relay shared by each switch when contact welding occurs in the switch (control relay).

Registered Utility Model No. 2573274

  However, in the above-described conventional technology, contact welding is detected, and the sub relay is turned off after turning off the other switches. Therefore, it takes a long time to cut off the energization of the switch in which contact welding has occurred. There was a problem.

  For this reason, problems such as the starter switch and the accessory switch being turned on at the same time causing noise on the in-vehicle electric device and the starter motor being operated even after the start of the engine has been completed have occurred.

  Even if welding occurs, it is not always necessary to disconnect all switches, and it may be desirable to continue normal operation. For example, when the starter switch is welded, it is preferable that only the starter switch is cut and the accessory switch and the ignition switch perform normal operations.

  However, in the conventional technology, when any switch is welded, all the switches are disconnected and the shared sub-relay is disconnected, so normal control is continued even if the switch is not welded. There was a problem that could not be done.

  The present invention has been made to solve the above-described problems caused by the prior art, and suppresses or suppresses the state where the starter switch and the accessory switch are simultaneously turned on, and the starter switch and the accessory switch are simultaneously turned on. An object of the present invention is to provide a start control device that continues normal switch control within a range that does not occur.

  In order to solve the above-described problems and achieve the object, a start control device according to claim 1 is a start control device that performs start control of a vehicle autonomously based on a signal received from a remote operation terminal. And at least one of a starter switch for controlling start of the engine, a sub-relay for cutting off energization of the starter switch, an ignition switch for controlling ignition of the engine, and an accessory switch for controlling power supply to the in-vehicle electric device. An energization circuit for energizing either one of the sub-relays independently, a starter switch welding detecting means for detecting the welding of the starter switch, and when the starter switch welding detecting means detects welding of the starter switch Controlling the sub-relay to start the switch Characterized by comprising a switch control means for cutting the current-carrying.

  According to the first aspect of the present invention, the start control device includes a sub-relay that cuts off the energization of the starter switch, and an energization circuit that independently energizes at least one of the ignition switch and the accessory switch with respect to the sub-relay. The sub-relay is disconnected when welding of the starter switch is detected.

  A start control device according to a second aspect of the present invention is a start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously, and controls a start of an engine. A switch, an accessory switch for controlling power supply to the in-vehicle electric device, a starter switch welding detection means for detecting welding of the starter switch, and an on-control of the accessory switch after the engine is started. And switch control means to be executed after performing welding detection according to the above.

  According to the second aspect of the present invention, the start control device executes the on-control of the accessory switch after the engine is started after the welding detection by the starter switch welding detection means.

  According to a third aspect of the present invention, there is provided a start control device according to the second aspect of the present invention, further comprising a sub-relay for cutting off the energization of the starter switch, wherein the switch control means is configured to detect the starter switch by the starter switch welding detection means. When the welding is detected, the accessory relay is turned on after the starter switch is turned off by controlling the sub-relay.

  According to the third aspect of the invention, when the starter switch is detected to be welded, the start control device controls the accessory relay to turn on the accessory switch after controlling the sub-relay to cut off the energization of the starter switch.

  According to a fourth aspect of the present invention, there is provided a start control device for starting control of a vehicle based on a signal received from a remote operation terminal or autonomously, wherein the starter controls engine start. Switch, accessory switch for controlling power supply to in-vehicle electrical equipment, accessory switch welding detection means for detecting welding of the accessory switch, and welding of the accessory switch by the accessory switch welding detection means after on-control of the starter switch Switch control means for controlling the starter switch to be turned off when the starter switch is detected.

  According to the fourth aspect of the invention, the start control device controls the starter switch to be turned off when the accessory switch weld detection means detects the accessory switch weld after the starter switch is turned on.

  According to a fifth aspect of the present invention, there is provided a start control device for starting control of a vehicle based on a signal received from a remote operation terminal or autonomously, wherein the starter controls start of the engine. Switch, accessory switch for controlling power supply to in-vehicle electrical equipment, accessory switch welding detection means for detecting welding of the accessory switch, and on-control of the starter switch is detected by the accessory switch welding detection means And switch control means to be executed later.

  According to the fifth aspect of the present invention, the start control device executes the on-control of the starter switch after performing the welding detection by the accessory switch welding detection means.

  According to a sixth aspect of the present invention, in the start control device according to the fifth aspect of the present invention, the switch control means inhibits the starter switch from being turned on when welding is detected by the accessory welding detection means. It is characterized by that.

  According to the sixth aspect of the present invention, the start control device suppresses the starter switch on control when the welding is detected by the accessory welding detecting means.

  According to a seventh aspect of the present invention, in the start control device according to the sixth aspect of the invention, the switch control means performs on-control of the starter switch when the welding is eliminated after the detection of the welding. It is characterized by.

  According to the seventh aspect of the invention, the start control device suppresses the starter switch on control when the welding is detected by the accessory weld detection means, and executes the starter switch on control when the weld is eliminated. To do.

  A start control device according to an eighth aspect of the present invention is a start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously, and controls a start of an engine. Switch, accessory switch for controlling power supply to in-vehicle electrical equipment, accessory switch welding detection means for detecting welding of the accessory switch, switching the execution order of on-control of the starter switch and detection of welding of the accessory switch And possible switch control means.

  According to the eighth aspect of the invention, the start control device switches the execution order between the starter switch ON control and the accessory switch welding detection.

  According to a ninth aspect of the present invention, there is provided the start control device according to any one of the first to eighth aspects, wherein the switch control means sets a waiting time from the off control of the accessory switch to the detection of welding of the switch. It can be changed.

  According to the ninth aspect of the invention, the start control device can change the standby time from the accessory switch OFF control to the welding detection of the switch.

  According to a tenth aspect of the present invention, there is provided a start control device according to the ninth aspect, wherein the execution order of the starter switch ON control and the accessory switch welding detection is switched based on the standby time. To do.

  According to the tenth aspect of the invention, the start control device switches the execution order of the starter switch ON control and the accessory switch welding detection based on the standby time from the accessory switch OFF control to the welding detection.

  The start control device according to the invention of claim 11 further comprises a manual starter switch, a manual ignition switch, and a manual accessory switch that are manually controlled by the driver in any one of the inventions of claims 1 to 10. It is characterized by.

  According to the eleventh aspect of the invention, a start control device includes a manual starter switch, a manual ignition switch, and a manual accessory switch that are manually controlled by a driver, and a starter switch, an ignition switch, and an accessory switch that are controlled on the starter side. Have each.

  According to the first aspect of the present invention, the start control device includes a sub-relay that cuts off the energization of the starter switch, and an energization circuit that independently energizes at least one of the ignition switch and the accessory switch with respect to the sub-relay. When the starter switch welding is detected, the sub-relay is disconnected so that the starter switch and the accessory switch can be prevented from being turned on at the same time and the starter switch and the accessory switch cannot be turned on at the same time. And the start control device that prevents the starter switch from being rotated too far can be obtained.

  According to the second aspect of the present invention, since the start control device executes the on-control of the accessory switch after the engine is started after the start detection by the starter switch weld detection means, the starter switch and the accessory switch are There is an effect that it is possible to obtain a start control device that suppresses the occurrence of a state that is simultaneously turned on and that continues normal switch control within a range in which the starter switch and the accessory switch are not simultaneously turned on.

  According to the invention of claim 3, when the starter switch is detected to be welded, the starter switch controls the sub relay to turn off the starter switch and then turns on the accessory switch. To obtain a start control device that prevents the starter switch and the accessory switch from being turned on at the same time, continues normal switch control as long as the starter switch and the accessory switch are not turned on at the same time, and prevents the starter switch from turning too far There is an effect that can be.

  According to the invention of claim 4, the start control switch controls the starter switch to be turned off when the accessory switch weld detection means detects the start of the accessory switch after the starter switch is turned on. There is an effect that it is possible to obtain a start control device that suppresses a state in which the switches are simultaneously turned on and continues normal switch control within a range in which the starter switch and the accessory switch are not simultaneously turned on.

  According to the fifth aspect of the invention, the start control device performs the on-control of the starter switch after performing the welding detection by the accessory switch welding detection means, so that the starter switch and the accessory switch are turned on simultaneously. The start control device can be obtained in which the normal switch control is continued as long as the starter switch and the accessory switch are not turned on at the same time.

  According to the invention of claim 6, the start control device suppresses the starter switch on control when the welding is detected by the accessory welding detection means, so that the starter switch and the accessory switch are turned on simultaneously. The start control device can be obtained in which the normal switch control is continued as long as the starter switch and the accessory switch are not turned on at the same time.

  According to the seventh aspect of the present invention, the start control device suppresses the starter switch on control when the welding is detected by the accessory weld detection means, and controls the starter switch on control when the weld is eliminated. Therefore, it is possible to obtain a start control device that suppresses occurrence of a state where the starter switch and the accessory switch are simultaneously turned on, and continues normal switch control within a range in which the starter switch and the accessory switch are not simultaneously turned on. There is an effect that can be done.

  According to the eighth aspect of the invention, the start control device switches the execution order between the starter switch ON control and the accessory switch welding detection, so that the start can be selected in accordance with the control order adapted to the connection state of the in-vehicle electrical device. There is an effect that a control device can be obtained.

  According to the ninth aspect of the present invention, the start control device can change the standby time from the accessory switch OFF control to the detection of the welding of the switch, and therefore executes the control adapted to the connection state of the in-vehicle electric device. There is an effect that a start control device can be obtained.

  Further, according to the invention of claim 10, the start control device switches the execution order of the starter switch ON control and the accessory switch welding detection based on the standby time from the accessory switch OFF control to the welding detection. There is an effect that it is possible to obtain a start control device that automatically selects the control order in accordance with the connection state of the in-vehicle electrical device.

  According to the eleventh aspect of the present invention, a start control device includes a manual starter switch, a manual ignition switch, and a manual accessory switch that are manually controlled by a driver, and a starter switch, an ignition switch, and an accessory switch that are controlled on the starter side. Therefore, there is an effect that it is possible to obtain a start control device that replaces the start operation by the driver.

  A vehicle remote starter, which is a preferred embodiment of a start control device according to the present invention, will be described in detail below with reference to the accompanying drawings.

  FIG. 1 is a schematic configuration diagram showing a schematic configuration of a remote starter according to an embodiment of the present invention. As shown in the figure, the remote starter 10 is connected to a battery 22, a door opening / closing switch 23, a door lock switch 24, a bonnet switch 25, an antenna 29, a starter relay 31, and a hazard lamp 33, as well as a shift position 26 and an engine. Data on the rotational speed 27 is acquired.

  The battery 22 is further connected to an ignition (IG) key switch 21, and the starter relay 31 is connected to a starter motor 32.

  The IG key switch 21 is operated by a driver inserting an ignition key and manually operating to supply power to the vehicle-mounted electrical device (power supply to the route to the ACC in the figure) and power supply to the ignition control device (same as above). Power supply to the path to the IG in the figure) and engine start (power supply to the starter relay in the figure).

  The door open / close switch 23 is a switch corresponding to the open / closed state of the vehicle door, and the door lock switch 24 is a switch corresponding to the locked state of the vehicle door. The bonnet switch 25 is a switch corresponding to the open / close state of the bonnet.

  The antenna 29 receives a signal from a transmitter 28 (for example, a remote key) possessed by the driver and outputs the signal to the remote starter 10. The starter relay 31 is a control switch that operates the starter motor 32 when the engine is started. The hazard lamp 33 warns the surroundings of the behavior of the host vehicle by simultaneously blinking the left and right direction indicator lamps. In this embodiment, the hazard lamp 33 is used as a notification means for notifying the driver of the remote start control result. .

  The remote starter 10 includes a main control unit 11, a reception processing unit 12, an input processing unit 13, a power supply unit 14, a drive output unit 15, an output monitoring unit 16, an output processing unit 17, a sub relay RL1, a sub relay RL2, It has an accessory (ACC) switch SWa, an ignition (IG) switch SWi, and a starter (ST) switch SWs.

  Here, the accessory switch SWa, the ignition switch SWi, and the starter switch SWs are respectively supplied with power to the vehicle-mounted electrical equipment (power supply to the route to the ACC in the figure) and supplied to the ignition control device (to IG in the figure). And power supply to the starter relay in the figure). That is, the remote starter 10 can replace the function of the IG key switch 21.

  The sub-relay RL1 is a fail-safe mechanism that cuts off the power supply to the accessory switch SWa and the ignition switch SWi, and the sub-relay RL2 is a fail-safe mechanism that cuts off the power supply to the starter switch SWs.

  The reception processing unit 12 outputs a signal received by the antenna 29 to the main control unit 11. Further, the input processing unit 13 outputs the state of the door opening / closing switch 23, the door lock switch 24 and the bonnet switch 25, the shift position 26 and the engine speed 27 to the main control unit 11.

  The drive output unit 15 is a means for executing on / off control of the accessory switch SWa, the ignition switch SWi, the starter switch SWs, the sub-relay RL1, and the sub-relay RL2. The power supply unit 14 acquires the power necessary for this control from the battery 22. And supply.

  The output monitor unit 16 monitors the outputs of the sub-relays RL1 and RL2, the accessory switch SWa, the ignition switch SWi, and the starter switch SWs and outputs them to the main control unit 11. The output processing unit 17 is a unit that executes control of the hazard lamp 33.

  The main control unit 11 is a control unit that controls the remote starter 10 as a whole. Based on signal inputs from the reception processing unit 12, the input processing unit 13, and the output monitor 16, the main control unit 11 is connected to the drive output unit 15 and the output processing unit 17. Perform signal output.

  Specifically, when the reception processing unit 12 receives a remote start instruction from the transmitter 28, the main control unit 11 controls the accessory switch SWa, the ignition switch SWi, and the starter switch SWs to execute start control. Note that when the signal input from the input processing unit 13 indicates opening of the door, opening of the lock, opening of the hood, etc., start control is not performed. Similarly, the start control is not performed when the shift position 26 is other than “parking”.

  The engine speed 27 is used to determine whether the engine has started after the starter switch SWs is turned on. It can also be used to determine whether or not the engine has been warmed up when performing the control of “turn off the engine at the end of warming up after remote start”.

  Next, the operation of the main control unit 11 will be specifically described. FIG. 2 is a flowchart for explaining the processing operation of the main control unit 11, and the processing flow shown in FIG. 2 starts when the reception processing unit 12 receives a remote start instruction from the transmitter 28.

  When the process starts, the main control unit 11 first turns on the sub-relay RL1 and the sub-relay RL2 (step S101). Next, the main control unit 11 sequentially performs on-control of the accessory switch SWa (step S102) and on-control of the ignition switch SWi (step S103).

  Thereafter, the main control unit 11 turns off the accessory switch SWa (step S104) and then turns on the starter switch SWs (step S105). The reason why the accessory switch SWa is turned off in this way is to prevent the accessory switch SWa and the starter switch SWs from being turned on at the same time so that the power supply to the in-vehicle electric device becomes unstable.

  If the engine is started by turning on the starter switch SWs (step S106), the main control unit 11 turns off the starter switch SWs (step S107) and turns on the accessory switch SWa (step S108).

  Subsequently, the main control unit 11 determines whether or not the starter switch SWs is welded (step S109). As a result, if the starter switch SWs is welded (step S109, Yes), the main control unit 11 turns off the sub-relay RL2 to cut off the energization of the starter switch SWs (step S110), and ends the start process. On the other hand, when the starter switch SWs is not welded (step S109, No), the main control unit 11 ends the starting process as it is.

  Here, even when the starter switch SWs is detected to be welded in the starting process and the sub-relay RL2 is disconnected, the sub-relay RL1 remains on, so the accessory switch SWa and the ignition switch connected to the sub-relay RL1. The energization of SWi is maintained and normal control can be continued.

  Next, the control output for each switch and the state of each switch by the processing shown in FIG. 2 will be described with reference to FIG. In the same figure, the process when the starter switch SWs is not welded and when the starter switch SWs is welded are shown.

  First, the case where the starter switch SWs is not welded will be described. When a remote start instruction (engine starter start signal) is received at time T100, the welding determination of sub-relay RL1 and sub-relay RL2 is executed, and if not, on-control is performed on sub-relay RL1 and sub-relay RL2 (time T101). ).

  Next, the welding determination of the accessory switch SWa, the ignition switch SWi, and the starter switch SWs is executed, and the on-control for the accessory switch SWa is performed at time T102. Further, it is determined whether the accessory switch SWa is correctly turned on in response to the on control (opening determination of the accessory switch SWa). Subsequently, at time T103, the ignition switch SWi is turned on, and the ignition switch SWi is determined to be open.

  Then, the OFF control for the accessory switch SWa is executed at time T104, and the welding determination of the accessory switch SWa is performed. At time T105, the starter switch SWs is turned on to determine whether the starter switch SWs is open.

  By the on-control of the starter switch SWs, the engine is started at time T106 and warming up is started. Therefore, the starter switch SWs is turned off at time T107 to determine whether or not the starter switch SWs is welded. At time T108, ON control for the accessory switch SWa is executed.

  Here, since the starter switch SWs is not welded, the accessory switch SWa, the ignition switch SWi, and the starter switch SWs perform normal control thereafter. In the figure, when the warm-up of the engine ends (time T109), the ignition switch SWi is turned off. Further, the accessory switch SWa is turned off at time T110, and the sub relay RL1 and the sub relay RL2 are turned off at time T111.

  Next, the case where the starter switch SWs is welded will be described. First, the processing at time T200 to 208 is the same as the processing at time T100 to 108, and the starter switch SWs is turned on at time T205, so that the voltage of the starter switch monitor terminal acquired by the output monitor unit 16 is at time T205. “Lo” is changed to “hi”.

  If the starter switch SWs is not welded, the voltage at the starter switch monitor terminal should change from “hi” to “Lo” when the starter switch SWs is turned off at time T207. However, since the voltage at the starter switch monitor terminal is “hi” after time T207, the main control unit 11 determines that “the starter switch SWs is welded” at time T208, and turns off the sub-relay RL2 at time T209. is doing.

  By the turn-off control of the sub-relay RL2, energization to the starter switch SWs is cut off at time T209, and the voltage at the starter switch monitor terminal changes from “hi” to “Lo”.

  Thereafter, normal control is performed for the accessory switch SWa and the ignition switch SWi. In the figure, when the engine warm-up ends (time T210), the ignition switch SWi is turned off. Also, the accessory switch SWa is turned off at time T211, and the sub relay RL1 is turned off at time T212.

  Thus, when welding occurs in the starter switch SWs, the time (from time T208 to time T209) when the accessory switch SWa and the starter switch SWs are simultaneously turned on by quickly turning off the sub-relay RL2 is controlled. It can be shortened.

  Further, regarding the accessory switch SWa and the ignition switch SWi, normal control can be continued even when the starter switch SWs is welded. Furthermore, it is possible to avoid an excessive rotation of the starter motor 32 (a state in which the rotation of the starter motor continues after the engine is started).

  2 and 3, the accessory switch SWa is turned on after the starter switch SWs is turned off, and the sub-relay RL2 is disconnected when the starter switch SWs is welded. If the accessory switch SWa is turned on after the start determination of the starter switch SWs after the switch SWs is turned off, the starter switch SWs and the accessory switch SWa are reliably prevented from being turned on at the same time. be able to.

  FIG. 4 shows the processing operation of the main controller 11 when the accessory switch SWa is turned on after the welding determination of the starter switch SWs. In the processing flow shown in the figure, the processes in steps S201 to S207 are the same as the processes in steps S101 to S107 shown in FIG. 2, and thus description thereof will be omitted here and step S208 and subsequent steps will be described.

  After the starter switch SWs is turned off (step S207), the main control unit 11 performs welding determination of the starter switch SWs (step S208). As a result, when the starter switch SWs is not welded (No at Step S208), the main control unit 11 turns on the accessory switch SWa (Step S209).

  On the other hand, if the starter switch SWs is welded (step S208, Yes), the main control unit 11 turns off the sub-relay RL2 to cut off the starter switch SWs (step S210), and then turns on the accessory switch SWa. (Step S209).

  After the accessory switch is turned on (step S209), the main control unit 11 ends the starting process, and thereafter performs normal control.

  Next, the control output for each switch and the state of each switch by the processing shown in FIG. 4 will be described with reference to FIG. In the same figure, the process when the starter switch SWs is not welded and when the starter switch SWs is welded are shown.

  First, the case where the starter switch SWs is not welded will be described. The processing at times T300 to 307 is the same as the processing at times T100 to 107 shown in FIG. Then, after the starter switch SWs is turned off at time T307, the result of the welding determination of the starter switch SWs is awaited, and it is confirmed that the starter switch SWs is not welded, and the accessory switch SWa is turned on at time T308.

  Subsequent control is normal control, and in the figure, when the engine warm-up ends (time T309), the ignition switch SWi is turned off. Further, the accessory switch SWa is turned off at time T310, and the sub relay RL1 and the sub relay RL2 are turned off at time T311.

  Next, the case where the starter switch SWs is welded will be described. First, the processing at time T400 to 407 is the same as the processing at time T300 to 307, and the starter switch monitor terminal voltage acquired by the output monitor unit 16 at time T405 is controlled by turning on the starter switch SWs at time T405. “Lo” is changed to “hi”.

  If the starter switch SWs is not welded, the voltage at the starter switch monitor terminal should change from “hi” to “Lo” when the starter switch SWs is turned off at time T407. However, since the voltage at the starter switch monitor terminal is “hi” after time T407, the main control unit 11 determines that “the starter switch SWs is welded” at time T408, and turns off the sub-relay RL2 at time T409. is doing.

  By the turn-off control of the sub relay RL2, the energization to the starter switch SWs is cut off at time T409, and the voltage at the starter switch monitor terminal changes from “hi” to “Lo”.

  Then, at the time T409, when the energization to the starter switch SWs is cut off, the on control for the accessory switch SWa is executed.

  Thereafter, the accessory switch SWa and the ignition switch SWi perform normal control. In the figure, when the engine warm-up ends (time T410), the ignition switch SWi is turned off. Further, the accessory switch SWa is turned off at time T411, and the sub relay RL1 is turned off at time T412.

  As described above, if the accessory switch SWa is turned on after the starter switch SWs is welded, the time from the starter switch SWs off control to the accessory switch SWa on control becomes longer. It can be reliably avoided that the SWs and the accessory switch SWa are simultaneously turned on.

  Next, control during welding of the accessory switch SWa will be described. When the on control is performed on the starter switch SWs, the accessory switch SWa is controlled to be turned off in advance to prevent the starter switch SWs and the accessory switch SWa from being turned on at the same time. However, if the accessory switch SWa is welded, the accessory switch SWa is kept on even after the main control unit 11 performs the off control on the accessory switch SWa, and the starter switch SWs and the accessory switch SWa are connected. It may be turned on at the same time.

  Therefore, when the main controller 11 detects the welding of the accessory switch SWa, the main controller 11 immediately controls the starter switch SWs to be turned off. This processing operation will be described with reference to the flowchart of FIG.

  In the processing flow shown in the figure, the processes in steps S301 to S305 are the same as the processes in steps S101 to S105 shown in FIG. 2, and thus description thereof will be omitted here and step S306 and subsequent steps will be described.

  After the starter switch SWs is turned on (step S305), the main control unit 11 performs welding determination of the accessory switch SWa (step S306). As a result, if the accessory switch SWa is welded (step S306, Yes), the main control unit 11 immediately turns off the starter switch SWs (step S308).

  On the other hand, when the accessory switch SWa is not welded (No at Step S306), the main control unit 11 continues the on state of the starter switch SWs until the engine is started (Step S307), and turns off the starter switch SWs after the engine is started. (Step S308).

  After the starter switch SWs is turned off (step S308), the main control unit 11 turns on the accessory switch SWa (step S309), ends the starting process, and shifts to normal control.

  Next, the control output for each switch and the state of each switch by the processing shown in FIG. 6 will be described with reference to FIG. In the same figure, the process when the accessory switch SWa is not welded and when the accessory switch SWa is welded are shown.

  First, the case where the accessory switch SWa is not welded will be described. The processing at times T500 to 505 is the same as the processing at times T100 to 105 shown in FIG. Then, after the starter switch SWs is turned on at time T505, the welding of the accessory switch SWa is determined, but since the welding is not detected, the starter switch SWs is kept on until the engine is started (time T506).

  Then, after the off control is performed on the starter switch SWs at time T507, the accessory switch SWa is turned on at time T508. Subsequent control is normal control, and in the figure, the ignition switch SWi is turned off at the end of warm-up of the engine (time T509). Further, the accessory switch SWa is turned off at time T510, and the sub relay RL1 and the sub relay RL2 are turned off at time T511.

  Next, a case where the accessory switch SWa is welded will be described. First, the processing at time T600 to 605 is the same as the processing at time T500 to 505, and the accessory switch SWa voltage obtained by the output monitor unit 16 is obtained at time T602 by turning on the accessory switch SWa at time T602. “Lo” is changed to “hi”.

  If the accessory switch SWa is not welded, the voltage at the accessory switch monitor terminal should change from “hi” to “Lo” when the accessory switch SWa is turned off at time T604. However, since the voltage of the accessory switch monitor terminal is “hi” after time T604, the main control unit 11 determines that “welding occurs to the accessory switch SWa” at time T606 and turns off the starter switch SWs at time T607. I have control. For this reason, the engine is not started and the engine remains off.

  Thereafter, normal control is performed on the accessory switch SWa and the ignition switch SWi. In the figure, the accessory switch SWa is turned on at time T608, and the ignition switch SWi is turned off at time T609. Further, the accessory switch SWa is turned off at time T610, and the sub relay RL1 and the sub relay RL2 are turned off at time T611.

  Thus, when welding occurs in the accessory switch SWa, the time when the accessory switch SWa and the starter switch SWs are turned on simultaneously by quickly turning off the starter switch SWs (from time T605 to time T607). Can be shortened.

  6 and 7, the starter switch SWs is turned on after the accessory switch SWa is turned off, and the starter switch SWs is disconnected when the accessory switch SWa is welded. If the starter switch SWs is turned on after the accessory switch SWa is turned off and the accessory switch SWa is welded, the starter switch SWs and the accessory switch SWa are reliably prevented from being turned on at the same time. can do.

  FIG. 8 shows the processing operation of the main controller 11 when the starter switch SWs is turned on after the accessory switch SWa is welded. In the processing flow shown in the figure, the processes in steps S401 to S404 are the same as the processes in steps S301 to S304 shown in FIG. 6, and thus description thereof will be omitted here and step S405 and subsequent steps will be described.

  After turning off the accessory switch SWa (step S404), the main control unit 11 performs welding determination of the accessory switch SWa (step S405). As a result, when the accessory switch SWa is not welded (step S405, No), the main control unit 11 performs on control on the starter switch SWs (step S406), starts the engine (step S407), and then starts the starter. The switch SWs is turned off (step S408).

  Then, after the starter switch SWs is turned off (step S408) or when the accessory switch SWa is welded (step S405, Yes), the main control unit 11 performs the on control for the accessory switch SWa (step S409). The starting process is terminated, and thereafter normal control is performed.

  Next, the control output for each switch and the state of each switch by the processing shown in FIG. 8 will be described with reference to FIG. In the same figure, the process when the accessory switch SWa is not welded and when the accessory switch SWa is welded are shown.

  First, the case where the accessory switch SWa is not welded will be described. The processes at times T700 to 704 are the same as the processes at times T500 to 504 shown in FIG. After the accessory switch SWa is turned off at time T704, the main control unit 11 determines whether or not the accessory switch SWa is welded. However, since the welding is not detected, the main control unit 11 performs on control on the starter switch SWs at time T705.

  With this control, the engine is started at time T706, and the main control unit 11 performs off control on the starter switch SWs at time T707. Thereafter, the accessory switch SWa is turned on at time T708. Subsequent control is normal control, and in the figure, when the engine warm-up ends (time T709), the ignition switch SWi is turned off. Further, the accessory switch SWa is turned off at time T710, and the sub relay RL1 and the sub relay RL2 are turned off at time T711.

  Next, a case where the accessory switch SWa is welded will be described. First, the processing at time T800 to 804 is the same as the processing at time T700 to 704, and the accessory switch SWa voltage obtained by the output monitor unit 16 is obtained at time T802 by turning on the accessory switch SWa at time T802. “Lo” is changed to “hi”.

  If the accessory switch SWa is not welded, the voltage at the accessory switch monitor terminal should change from “hi” to “Lo” when the accessory switch SWa is turned off at time T804. However, since the voltage of the accessory switch monitor terminal is “hi” after time T804, the main control unit 11 determines that “welding has occurred in the accessory switch SWa” at time T805, and performs the on-control of the starter switch SWs. Absent. In addition, after welding generate | occur | produces in accessory switch SWa, when welding is canceled and accessory switch SWa will be in an OFF state, ON control of starter switch SWs is performed.

  Thereafter, normal control is performed on the accessory switch SWa and the ignition switch SWi. In the figure, the accessory switch SWa is turned on at time T806, and the ignition switch SWi is turned off at time T807. Further, the accessory switch SWa is turned off at time T808, and the sub relay RL1 and the sub relay RL2 are turned off at time T809.

  As described above, if it is configured to determine whether or not the start control of the starter switch SWs can be executed based on the welding determination of the accessory switch SWa, the time from the off control of the accessory switch SWa to the on control of the starter switch SWs increases. The starter switch SWs and the accessory switch SWa can be reliably prevented from being turned on at the same time.

  Here, if the time from the OFF control of the accessory switch SWa to the welding determination is shortened, the time from the OFF control of the accessory switch SWa to the ON control of the starter switch SWs can be shortened.

  However, the time from when the accessory switch SWa is turned off until the voltage drops to the ground depends on the capacitor capacity of the in-vehicle electric device connected to the ACC line. Therefore, if the waiting time until the welding determination is set too short, the remaining charge on the ACC line may be erroneously detected as “the accessory switch SWa is welded”.

  A specific example of this erroneous detection is shown in FIG. First, the processing at times T900 to 904 is the same as the processing at times T700 to 704. By turning on the accessory switch SWa at time T902, the voltage of the accessory switch monitor terminal acquired by the output monitor unit 16 is at time T902. “Lo” is changed to “hi”.

  Thereafter, the accessory switch SWa is turned off at time T904, but the voltage at the accessory switch monitor terminal changes from “hi” to “Lo” at time T906 due to the influence of the remaining charge on the ACC line. Therefore, if the accessory switch SWa is determined to be welded at time T905, it is determined that the accessory switch SWa is welded from time T905 to time T906.

  In order to avoid such an erroneous determination, it is desirable to set the standby time until the welding determination of the accessory switch SWa in accordance with the connection state of the in-vehicle electric device with respect to the ACC line. In addition, since the in-vehicle electrical device can be added or deleted after the vehicle is sold, the main control unit 11 can arbitrarily change the setting of the standby time until the welding determination of the accessory switch SWa.

  Further, the front-rear relationship between the welding determination of the accessory switch SWa and the ON control of the starter switch SWs can be selected. That is, the main control unit 11 performs the ON control of the starter switch SWs before the accessory switch SWa is determined to be welded (shown in FIGS. 6 and 7), and the ON control of the starter switch SWs after the accessory switch SWa is determined to be welded. Can be switched to the control (shown in FIGS. 8 and 9).

  Here, which control is selected may be set directly according to the relationship between the welding determination and the ON control, or may be automatically selected based on the length of the standby time. When selecting automatically based on the length of the standby time, for example, the standby time is compared with a predetermined threshold value. If the standby time is equal to or greater than the threshold value, the starter switch SWs is switched before the welding determination of the accessory switch SWa. When the on-control is executed and the standby time is less than the threshold, the on-control of the starter switch SWs may be performed after the welding determination of the accessory switch SWa.

  Next, another configuration example of the present invention will be described. In the configuration of FIG. 1, ACC (accessory), IG (ignition), and ST (starter) are each one system, but depending on the configuration of the vehicle, there may be multiple systems of IGs and STs. When there are a plurality of systems of ST, power can be supplied to the starter relay 31, and the system can be divided into a system that actually starts the engine and a system that is used for controlling other devices.

  In the configuration of FIG. 1, the starter switch SWs is connected to the sub-relay RL2 and ACC and ST are independently fail-safe. However, it is the power supply to the starter relay 31 that affects the supply voltage to the ACC. Therefore, when there are multiple systems of STs, only the system that actually starts the engine needs to be independent of the ACC.

  FIG. 11 and FIG. 12 show a configuration example of the remote starter in the case of having a plurality of systems of STs. In the configuration illustrated in FIG. 11, the accessory switch SWa, the ignition switch SWi1, and the starter switch SWs1 are connected to the sub relay RL1, and the ignition switch SWi2 and the starter switch SWs2 are connected to the sub relay RL2. In this configuration, the system for actually starting the engine is controlled by the starter switch SWs2, and the system used for control is controlled by the starter switch SWs1.

  In the configuration shown in FIG. 12, the accessory switch SWa and the ignition switch SWi1 are connected to the sub relay RL1, and the starter switch SWs1, the ignition switch SWi2, and the starter switch SWs2 are connected to the sub relay RL2.

  In this way, by supplying power to the starter relay 31 and making the system that actually starts the engine and the ACC independent of each other, the present invention can be used even in a configuration that requires multiple systems of IGs and STs. Can do.

  Next, the processing operation of the remote starter 10 will be described. FIG. 13 is a flowchart for explaining processing executed when the remote starter 10 receives a remote start instruction from the transmitter 28. The process flow shown in FIG. 13 is repeated during start control by the remote starter 10. Executed.

  As shown in FIG. 13, when receiving the remote start instruction, the remote starter 10 first turns on the sub-releases RL1 and RL2 (step S1001). Subsequently, the first ON control of the ACC line (accessory switch SWa) (step S1002) and the ON control of the IG line (ignition switch SWi) (step S1003) are performed.

  After the first off control of the ACC line (step S1004), the on control of the ST line (starter switch SWs) is performed (step S1005). Further, after the ST (starter switch SWs) is turned off (step S1006), the ACC line is turned on for the second time (step S1007), and the process is terminated.

  Next, each process shown in FIG. 13 will be described in detail. The details of each process are as follows: “After ACC is turned on, sub-relay RL2 is turned off when ST is welded (the process described with reference to FIGS. 2 and 3)”, “When ST is welded, ACC is turned on after sub-relay RL2 is turned off (FIGS. 4 and 5 ”,“ ST off during ACC welding (processing described using FIGS. 6 and 7) ”,“ ST-on suppression during ACC welding (processing described using FIGS. 8 and 9) ” It depends on which one is adopted.

  First, details of each process when “sub relay RL2 OFF at ST welding after ACC ON” is adopted will be described with reference to the flowchart of FIG. In this processing flow, the remote starter 10 first determines whether start control is permitted (step S1101).

  As a result, when the start control is permitted (step S1101, Yes), it is determined whether or not both the sub relay RL1 and the sub relay RL2 are in the on state (step S1102).

  When the sub relays RL1 and RL2 are not in the on state (step S1102, No), the drive output unit 15 performs the on control of the sub relay RL1 (step S1103) and the on control of the sub relay RL2 (step S1104).

  Then, the control timing of the first ACC on (step S1002 in FIG. 13) is set (step S1105), and the welding determination of the sub-relays RL1 and RL2 is prohibited (step S1106).

  Further, the welding determination of the ACC line (accessory switch SWa) is permitted (step S1107), the welding determination of the IG line (ignition switch SWi) is permitted (step S1108), and the welding determination of the ST line (starter switch SWs) is permitted. (Step S1109).

  After this step S1109 ends, or when the start control is not permitted (step S1101, No), or when the sub relays RL1 and RL2 are on (step S1102, Yes), the remote starter 10 performs the sub relay RL on process. And the process proceeds to the first control on ACC shown as step S1102 in FIG.

  FIG. 15 is a flowchart for explaining the details of the processing in the first ACC-on control shown as step S1002 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the first control timing of ACC (step S1201).

  As a result, if it is the first control timing of ACC (step S1201, Yes), the remote starter 10 next determines whether start control is permitted (step S1202).

  If the start control is permitted (step S1202, Yes), the drive output unit 15 turns on the ACC switch SWa and executes the ACC on-output (step S1203).

  Next, the control timing of the IG line ON control (step S1003 in FIG. 13) is set (step S1204), and the ACC welding determination is prohibited (step S1205). Similarly, the welding determination of the IG line is prohibited (step S1206), and the welding determination of the ST line is prohibited (step S1207).

  Thereafter, the remote starter 10 sets the determination start timing of the ACC open determination (step S1208). The determination start timing is set in consideration of chattering due to switch change. Specifically, it is preferable to set the time approximately 50 milliseconds to 100 milliseconds after the ACC on control in step S1203. Thereafter, when setting the determination start timing, the timing is similarly set in consideration of chattering.

  After step S1208 is completed, or when the control timing is not the first ACC on (step S1201, No), or when the start control is not permitted (step S1202, No), the remote starter 10 performs the ACC on first control. And the process proceeds to the on-control of the IG line shown as step S1003 in FIG.

  FIG. 16 is a flowchart for explaining the details of the processing in the on-control of the IG line shown as step S1003 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the IG ON control timing (step S1301).

  As a result, when it is the control timing of IG ON (step S1301, Yes), the remote starter 10 next determines whether start control is permitted (step S1302).

  If the start control is permitted (step S1302, Yes), the drive output unit 15 turns on the ignition switch SWi and executes the IG on output (step S1303).

  Next, the control timing of the first off control of the ACC line (step S1004 in FIG. 13) is set (step S1304), and the determination start timing of the IG line open determination is set (step S1305).

  After step S1305, or when it is not the IG-on control timing (step S1301, No), or when the start control is not permitted (step S1302, No), the remote starter 10 ends the IG-on control, The control shifts to the first ACC-off control shown as step S1004 in FIG.

  FIG. 17 is a flowchart for explaining the details of the processing in the first ACC-off control shown as step S1004 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the first control timing of ACC off (step S1401).

  As a result, when it is the first control timing of ACC off (step S1401, Yes), the drive output unit 15 turns off the ACC switch SWa and executes ACC off output (step S1402).

  Then, the control timing of the ON control of the ST line (step S1005 in FIG. 13) is set (step S1403), and the open determination of the ACC line is prohibited (step S1404).

  Thereafter, the remote starter 10 sets the determination start timing of the ACC welding determination (step S1405). The start timing of this determination is set in consideration of the influence of residual charges when the switch is turned off. Although the specific length depends on the capacitance of the capacitor, for example, it is preferable to set it to about one second after the ACC off control in step S1402. Thereafter, when the determination start timing is set, the timing is similarly set in consideration of the residual charge.

  After step S1405 is completed, or when it is not the first control timing of ACC off (step S1401, No), the remote starter 10 finishes the first control of ACC off and turns on the ST line shown as step S1005 in FIG. Transition to control.

  FIG. 18 is a flowchart for explaining details of processing in the ON control of the ST line shown as step S1005 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the ST ON control timing (step S1501).

  As a result, when it is the ST control timing (step S1501, Yes), the remote starter 10 next determines whether start control is permitted (step S1502).

  If the start control is permitted (step S1502, Yes), the drive output unit 15 turns on the starter switch SWs and executes the on-output of ST (step S1503).

  Next, the control timing of the ST line off control (step S1006 in FIG. 13) is set (step S1504), and the determination start timing of the ST line open determination is set (step S1505).

  After the end of step S1505, or when it is not the ST on control timing (step S1501, No), or when the start control is not permitted (step S1502, No), the remote starter 10 ends the ST on control, The process proceeds to ST line off control shown as step S1006 in FIG.

  FIG. 19 is a flowchart for explaining the details of the processing in the ST line off control shown as step S1006 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the ST OFF control timing (step S1601).

  As a result, when it is the ST off control timing (step S1601, Yes), the drive output unit 15 turns off the starter switch SWs and executes the ST off output (step S1602).

  Next, the control timing of the second ACC on (step S1007 in FIG. 13) is set (step S1603), the determination start timing of the ST line welding determination is set (step S1604), and the ST line open determination is performed. It is prohibited (step S1605).

  After the end of step S1605 or when it is not the control timing of ST off (step S1601, No), the remote starter 10 finishes the control of ST off and proceeds to the second control of ACC shown as step S1007 in FIG. To do.

  FIG. 20 is a flowchart for explaining the details of the processing in the second control of ACC shown as step S1007 in FIG. In this processing flow, the remote starter 10 first determines whether or not it is the second control timing of ACC on (step S1701).

  As a result, when it is the second control timing of ACC on (step S1701, Yes), the remote starter 10 next determines whether start control is permitted (step S1702).

  If the start control is permitted (step S1702, Yes), the drive output unit 15 turns on the ACC switch SWa, executes the ACC on-output (step S1703), and prohibits the ACC welding determination (step S1704). )

  After the end of step S1704, or when the control timing is not the second control time of ACC (step S1701, No), or when the start control is not permitted (step S1702, No), the remote starter 10 performs the second control of ACC. Exit.

  Next, failure determination by the remote starter 10 will be described. The start control process described with reference to FIGS. 13 to 20 is a process that is executed when a remote start instruction is received from the transmitter 28. The sub relay, ACC, IG, and ST failure determination is performed in the main routine. Run regularly.

  FIG. 21 is a flowchart for explaining the processing operation of the remote starter 10 in the failure determination of the sub-relays RL1 and RL2. As shown in the figure, in determining the failure of the sub-relay, first, the output capture of the sub-relay RL1 (step S1801) and the output capture of the sub-relay RL2 (step S1802) are executed.

  Next, the remote starter 10 determines whether or not the welding determination of the sub-relays RL1 and RL2 is permitted (step S1803). As a result, if the welding determination of the sub-relays RL1 and RL2 is not permitted (step S1803, No), the process is terminated as it is.

  On the other hand, if welding determination of sub relays RL1 and RL2 is permitted (step S1803, Yes), remote starter 10 performs welding determination of sub relay RL1 (step S1804). Further, if the sub-relay RL1 is not welded (step S1804, No), the sub-relay RL2 is next welded (step S1805).

  If the sub-relay RL2 is not welded (step S1805, No), the process is terminated as it is.

  On the other hand, when sub-relay RL1 is welded (step S1804, Yes) or when sub-relay RL2 is welded (step S1805, Yes), remote starter 10 prohibits start control (step S1806). ), The process is terminated.

  Here, the prohibition of the start control is set by setting a predetermined flag, and this flag may be referred to when determining whether the start control is permitted. Further, the sub relay RL1 may be controlled to be turned off in accordance with the start control prohibition. Thereafter, when starting control is prohibited, a predetermined flag is set similarly, and the sub-relay RL1 may be turned off.

  Subsequently, the failure determination of the IG will be described. FIG. 22 is a flowchart for explaining the processing operation of the remote starter 10 in determining the failure of the IG line. As shown in FIG. 22, in the IG failure determination, first, the IG line output capture (step S1901) is executed.

  Next, the remote starter 10 determines whether or not the IG welding determination is permitted (step S1902). If the IG welding determination is permitted (step S1902, Yes), the IG line welding determination is performed (step S1903). As a result, if the IG line is welded (step S1903, Yes), start control is prohibited (step S1904).

  After the start control is prohibited in step S1904, or when the IG welding determination is not permitted (step S1902, No), or when the IG line is not welded (step S1903, No), the remote starter 10 then moves to the IG It is determined whether it is the start timing of the open determination (step S1905).

  As a result, if it is the start timing of the IG open determination (step S1905, Yes), the remote starter 10 permits the IG open determination (step S1906).

  After step S1906 or when it is not the start timing of the IG open determination (step S1905, No), the remote starter 10 determines whether the IG open determination is permitted (step S1907).

  If the IG open determination is permitted (step S1907, Yes), the remote starter 10 performs an IG line open determination (step S1908). As a result, if the IG line has an open failure (step S1908, Yes), start control is prohibited (step S1909), and the process ends.

  On the other hand, when the IG open determination is not permitted (step S1907, No), or when the IG line is not open failure (step S1908, No), the remote starter 10 ends the IG failure determination as it is.

  Next, ACC failure determination will be described. FIG. 23 is a flowchart for explaining the processing operation of the remote starter 10 in determining the failure of the ACC line. As shown in the figure, in the ACC failure determination, first, the output of the ACC line is captured (step S2001).

  Next, the remote starter 10 determines whether or not it is the start timing of the ACC welding determination (step S2002). As a result, if it is the start timing of the ACC welding determination (step S2002, Yes), The welding determination is permitted (step S2003).

  After step S2003 or when it is not the start timing of the ACC welding determination (step S2002, No), the remote starter 10 determines whether the ACC welding determination is permitted (step S2004).

  If the ACC welding determination is permitted (step S2004, Yes), the remote starter 10 performs the ACC line welding determination (step S2005). As a result, if the ACC line is welded (step S2005, Yes), start control is prohibited (step S2006).

  After the start control is prohibited in step S2006, or when the ACC welding determination is not permitted (step S2004, No), or when the ACC line is not welded (step S2005, No), the remote starter 10 then selects the ACC. It is determined whether or not it is the start timing of open determination (step S2007).

  As a result, if it is the start timing of the ACC open determination (step S2007, Yes), the remote starter 10 permits the ACC open determination (step S2008).

  After step S2008 or when it is not the start timing of the ACC open determination (step S2007, No), the remote starter 10 determines whether or not the ACC open determination is permitted (step S2009).

  If the ACC open determination is permitted (step S2009, Yes), the remote starter 10 performs the ACC line open determination (step S2010). As a result, if the ACC line has an open failure (step S2010, Yes), start control is prohibited (step S2011), and the process ends.

  On the other hand, when the ACC open determination is not permitted (step S2009, No), or when the ACC line is not open failure (step S2010, No), the remote starter 10 ends the ACC failure determination as it is.

  Next, ST failure determination will be described. FIG. 24 is a flowchart for explaining the processing operation of the remote starter 10 in the failure determination of the ST line. As shown in FIG. 24, in ST failure determination, first, ST line output capture (step S2101) is executed.

  Next, the remote starter 10 determines whether or not it is the start timing of the ST welding determination (step S2102), and if the result is the start timing of the ST welding determination (step S2102, Yes), The welding determination is permitted (step S2103).

  After step S2103 or when it is not the start timing of ST welding determination (step S2102, No), remote starter 10 determines whether or not ST welding determination is permitted (step S2104).

  If ST welding determination is permitted (step S2104, Yes), remote starter 10 performs ST line welding determination (step S2105). As a result, if the ST line is welded (step S2105, Yes), the sub-relay RL2 is turned off (step S2106) and the start control is prohibited (step S2107).

  After the start control is prohibited in step S2107, or when ST welding determination is not permitted (step S2104, No), or when the ST line is not welded (step S2105, No), the remote starter 10 then performs ST It is determined whether or not it is the start timing of the open determination (step S2108). If the result is the start timing of the ST open determination (step S2108, Yes), the ST open determination is permitted (step S2109).

  After step S2109 or when it is not the start timing of ST open determination (step S2108, No), remote starter 10 determines whether or not ST open determination is permitted (step S2110).

  If ST open determination is permitted (step S2110, Yes), remote starter 10 performs ST line open determination (step S2111). As a result, if the ST line has an open failure (step S2111, Yes), the sub-relay RL2 is turned off (step S2112), the start control is prohibited (step S2113), and the process ends.

  On the other hand, when the ST open determination is not permitted (step S2110, No), or when the ST line is not open failure (step S2111, No), the remote starter 10 ends the ST failure determination as it is.

  In this ST failure determination, as indicated by shading in the figure, when welding occurs in the ST (step S2105, Yes), the sub relay RL2 is turned off (step S2106), so that the starter switch SWs Occurrence of a state in which the accessory switch SWa is turned on at the same time can be suppressed.

  Next, a process in the case of adopting “ACC on after ST relay is turned off at the time of ST welding” will be described. In this case, compared with the case of “sub relay RL2 off at ST welding after ACC on” described with reference to FIGS. 14 to 24, the ST off process and the ST failure determination process are different, and the other processes are the same. Therefore, only these two processes will be described.

  FIG. 25 is a flowchart for explaining the details of the ST line off control (step S1006 in FIG. 13) in the case of adopting “ACC ON after sub relay RL2 OFF at the time of ST welding”. In this processing flow, the remote starter 10 first determines whether or not it is the ST OFF control timing (step S2201).

  As a result, when it is the ST off control timing (step S2201, Yes), the drive output unit 15 turns off the starter switch SWs and executes the ST off output (step S2202).

  Next, instead of setting the ACC-on second control timing, the ST line welding determination determination start timing setting (step S2203) is executed, and the ST line open determination is prohibited (step S2204). Further, a flag indicating ST off is set (step S2205).

  Then, after the end of step S2205 or when it is not the ST off control timing (step S2201, No), the ST off control is ended, and the control shifts to the ACC on second control shown as step S1007 in FIG.

  Next, an ST failure determination process in the case of adopting “ACC ON after sub relay RL2 OFF at the time of ST welding” is shown in the flowchart of FIG. In the process shown in the figure, first, the ST line output capture (step S2301) is executed.

  Next, the remote starter 10 determines whether or not it is the start timing of the ST welding determination (step S2302). If the result is the start timing of the ST welding determination (step S2302, Yes), The welding determination is permitted (step S2303).

  After step S2303 or when it is not the start timing of the ST welding determination (step S2302, No), the remote starter 10 determines whether the ST welding determination is permitted (step S2304).

  If ST welding determination is permitted (step S2304, Yes), remote starter 10 performs ST line welding determination (step S2305). As a result, if the ST line is welded (step S2305, Yes), the sub-relay RL2 is turned off (step S2306) and the start control is prohibited (step S2307).

  After the start control is prohibited in step S2307 or when the ST line is not welded (step S2305, No), the start control device 10 next determines whether or not the ST off flag is set (step S2308).

  As a result, if the ST off flag is set (step S2308, Yes), the second control timing of ACC on is set (step S2309), and the ST off flag is reset (step S2310).

  After the end of step S2310, or when the ST off flag is not set (step S2308, No), or when the ST welding determination is not permitted (step S2304, No), the remote starter 10 is shown in FIG. The process moves to step S2108.

  Next, a process when “ST OFF at the time of ACC welding” is employed will be described. In this case, compared to the case of “sub relay RL2 off at ST welding after ACC on” described with reference to FIGS. 14 to 24, the ST on process and the ACC failure determination process are different, and the other processes are the same. Therefore, only these two processes will be described.

  FIG. 27 is a flowchart for explaining the details of the ON control of the ST line (step S1005 in FIG. 13) when “ST OFF at the time of ACC welding” is adopted. In this processing flow, the remote starter 10 first determines whether or not it is the ST ON control timing (step S2401).

  As a result, when it is the control timing of ST on (step S2401, Yes), the remote starter 10 next determines whether start control is permitted (step S2402).

  If the start control is permitted (step S2402, Yes), the drive output unit 15 turns on the starter switch SWs and executes the ST on output (step S2403).

  Next, the control timing of the off control of the ST line (step S1006 in FIG. 13) is set (step S2404), and the determination start timing of the ST line open determination is set (step S2405). After that, the start control device 10 sets a flag indicating ST on (step S2406).

  After step S2406, or when it is not the control timing of ST on (step S2401, No), or when the start control is not permitted (step S2402, No), the remote starter 10 ends the control of ST on.

  Next, the flowchart of FIG. 28 shows the ACC failure determination process when “ST OFF at the time of ACC welding” is adopted. In the process shown in the figure, first, the output of the ACC line is fetched (step S2501).

  Next, the remote starter 10 determines whether or not it is the start timing of the ACC welding determination (step S2502), and if the result is the start timing of the ACC welding determination (step S2502, Yes), The welding determination is permitted (step S2503).

  After step S2503 or when it is not the start timing of the ACC welding determination (step S2502, No), the remote starter 10 determines whether or not the ACC welding determination is permitted (step S2504).

  If ACC welding determination is permitted (step S2504, Yes), remote starter 10 performs ACC line welding determination (step S2505). As a result, if the ACC line is welded (step S2505, Yes), start control is prohibited (step S2506).

  After the start control is prohibited in step S2506, the start control device 10 determines whether or not the ST on flag is set as shown by shading in the figure (step S2507). As a result, if the ST on flag is set (step S2507, Yes), the ST off control timing is reset (step S2508), and then the ST on flag is reset (step S2509). Here, the ST off control timing is set to the earliest timing at which the starter switch SWs can be turned off.

  After the ST on flag is reset in step S2509, or when the ST on flag is not set (step S2507, No), when the ACC welding determination is not permitted (step S2504, No), or when the ACC line is not welded (Step S2505, No), the remote starter 10 proceeds to Step S2007 shown in FIG.

  Subsequently, a process in the case of adopting “suppress ST-on during ACC welding” will be described. In this case, compared with the case of “sub relay RL2 off at ST welding after ACC on” described with reference to FIGS. Since these are the same, only these two processes will be described.

  FIG. 29 is a flowchart for explaining the details of the first ACC-off control (step S1004 in FIG. 13) when “suppress ST-on during ACC welding” is adopted. In this processing flow, the remote starter 10 first determines whether or not it is the first control timing of ACC off (step S2601).

  As a result, when it is the first control timing of ACC off (step S2601, Yes), the drive output unit 15 turns off the ACC switch SWa and executes ACC off output (step S2602).

  After that, the ACC line open determination is prohibited instead of the ST line ON control timing set (step S2603). Then, the determination start timing of the ACC welding determination is set (step S2604), and a flag indicating the first ACC off is set (step S2605).

  After step S2605 ends or when it is not the first control time of ACC off (step S2601, No), remote starter 10 ends the first control of ACC off.

  Next, the flowchart of FIG. 30 shows the ACC failure determination process in the case of adopting “suppress ST-on during ACC welding”. In the process shown in the figure, first, the output of the ACC line is fetched (step S2701).

  Next, the remote starter 10 determines whether or not it is the start timing of the ACC welding determination (step S2702), and if the result is the start timing of the ACC welding determination (step S2702, Yes), The welding determination is permitted (step S2703).

  After step S2703 or when it is not the start timing of the ACC welding determination (step S2702, No), the remote starter 10 determines whether the ACC welding determination is permitted (step S2704). If the ACC welding determination is permitted (step S2704, Yes), remote starter 10 performs the ACC line welding determination (step S2705).

  As a result, if the ACC line is not welded (step S2705, No), the start control device 10 determines whether or not the ACC off first flag is set (step S2706). If the ACC off first flag is set (step S2706, Yes), the start control device 10 sets the control timing of ST on (step S2707), and resets the ACC off flag (step S2708).

  On the other hand, if the ACC line is welded (step S2705, Yes), after starting control is prohibited (step S2709), it is determined whether the ACC off first flag is set (step S2710). If the ACC off first flag is set (step S2710, Yes), the start control device 10 sets the ACC on second control timing (step S2711), and resets the ACC off flag (step S2712). ).

  After resetting the ACC off flag (step S2708 or step S2712), or when ACC welding determination is not permitted (step S2704, No), or when the ACC off first flag is not set (step S2706, No, Or, step S2710, No), the remote starter 10 proceeds to step S2007 shown in FIG.

  Next, the setting process of the standby time (ACC welding determination delay time) until the welding determination of the accessory switch SWa will be described. The flowchart shown in FIG. 31 is an example of an ACC welding determination delay time setting process, and is repeatedly executed when the start control device 10 is in the setting change mode.

  First, the remote starter 10 determines whether or not the first key of the transmitter 28 has been operated (changed from off to on) (step S2801). If the first key is operated (step S2801, Yes), the ACC welding determination delay time Ta is increased by 1 second (step S2802), and the process is terminated.

  On the other hand, if the first key has not been operated (step S2801, No), the remote starter 10 determines whether or not the second key of the transmitter 28 has been operated (changed from off to on) ( Step S2803). If the second key is operated (step S2803, Yes), the ACC welding determination delay time Ta is decreased by 1 second (step S2804), the process is terminated, and the second key is not operated (step S2804). In step S2803, No), the process is terminated as it is.

  Thus, the user can set an appropriate delay time by increasing / decreasing the ACC welding determination delay time in response to a predetermined operation (the operation of the first key and the second key of the transmitter 28 in the processing flow of FIG. 31). Can be specified.

  Next, switching of the ACC welding determination and the front-rear relationship of the ST on control will be described. The flowchart shown in FIG. 32 is an example of the setting process of the context of ACC welding determination and ST on control, and is repeatedly executed when the start control device 10 is in the setting change mode.

  First, the remote starter 10 counts the number of times the door is opened and closed for 10 seconds based on the output of the door opening / closing switch 23 (step S2901). As a result, if the door is opened and closed five times or more, the ST on control mode flag is set to 1 (step S2902). If the door opening / closing frequency is 4 or less, the ST on control mode flag is set to 0 (step S2903).

  The ST ON control mode flag indicates that “ST ON control is performed before ACC welding determination” when the value is “1”, and “after ACC welding determination” when the value is “0”. The flag indicates that “ST ON control is executed”, and the initial value is “1”.

  As described above, the user can arbitrarily select the context of the ACC welding determination and the ST-on control by a predetermined operation (the number of times the door is opened and closed for 10 seconds in the processing flow of FIG. 32).

  Next, control selection when the ST-on control mode flag is used will be described with reference to FIGS. FIG. 33 is a flowchart for explaining the first control of ACC off when the ST on control mode flag is used.

  In the process shown in the figure, the remote starter 10 first refers to the ST on control mode flag (step S3001). If the ST on control mode flag is “1”, the process proceeds to step S1401. If the ST on control mode flag is “0”, the process proceeds to step S2601.

  Similarly, in the ST-on control when the ST-on control mode flag is used, as shown in the flowchart of FIG. 34, the remote starter 10 first refers to the ST-on control mode flag (step S3002). If the ST on control mode flag is “1”, the process proceeds to step S2401. If the ST on control mode flag is “0”, the process proceeds to step S1501.

  In the ACC failure determination when the ST on control mode flag is used, the remote starter 10 first refers to the ST on control mode flag as shown in the flowchart of FIG. 35 (step S3003). If the ST on control mode flag is “1”, the process proceeds to step S2501. If the ST on control mode flag is “0”, the process proceeds to step S2701.

  By the way, as described above, the context of the ACC welding determination and the ST-on control can be automatically switched based on the ACC welding determination delay time. 36 to 38 show processing examples when the ACC welding determination and the ON / OFF relationship of the ST-on control are automatically switched.

  FIG. 36 is a flowchart for explaining the first control of ACC OFF when the ACC welding determination and the ON / OFF relation of ST ON control are automatically switched. In the process shown in the figure, the remote starter 10 first compares the ACC welding determination delay time Ta with a predetermined threshold A (step S3101). If “Ta> A”, the process proceeds to step S1401. If “Ta ≦ A”, the process proceeds to step S2601.

  Similarly, in the ST-on control in the case where the ACC welding determination and the ST-on control before and after are automatically switched, as shown in the flowchart of FIG. 37, the remote starter 10 first determines the ACC welding determination delay time Ta and a predetermined threshold A is compared (step S3102). If “Ta> A”, the process proceeds to step S2401. If “Ta ≦ A”, the process proceeds to step S1501.

  Further, in the ACC failure determination in the case of automatically switching the ACC welding determination and the ST ON control before and after, as shown in the flowchart of FIG. 38, the remote starter 10 first determines the ACC welding determination delay time Ta and a predetermined threshold A. Are compared (step S3103). If “Ta> A”, the process proceeds to step S2501. If “Ta ≦ A”, the process proceeds to step S2701.

  As described above, in the remote starter according to the present embodiment, when the accessory switch SWa and the ignition switch SWi are connected to the sub-relay RL1, the starter switch SWs is connected to the sub-relay RL2, and the starter switch SWs is welded. By turning off the sub-relay RL2, the time during which the accessory switch SWa and the starter switch SWs are turned on at the same time can be shortened or the occurrence of the state can be avoided.

  Further, regarding the accessory switch SWa and the ignition switch SWi, normal control can be continued even when the starter switch SWs is welded. Furthermore, it is possible to avoid an excessive rotation of the starter motor 32 (a state in which the rotation of the starter motor continues after the engine is started).

  Further, when the accessory switch SWa is welded, the time when the accessory switch SWa and the starter switch SWs are turned on simultaneously is controlled by turning off the starter switch SWs or not performing the on control of the starter switch SWs. The occurrence of this state can be avoided.

  Moreover, by making it possible to set the time until the welding determination of the accessory switch SWa, it is possible to prevent erroneous detection in the welding determination and to shorten the time until the start control of the starter switch SWs (engine start).

  Furthermore, by making it possible to change the front-rear relationship between the welding determination of the accessory switch SWa and the ON control of the starter switch SWs arbitrarily or automatically based on the standby time until the welding determination, the connection state of the in-vehicle electric device can be changed. Corresponding start control can be realized.

  In addition, in order to simplify the explanation in this embodiment, the processing at the time of starter switch welding and the processing at the time of accessory switch welding are individually described, but the processing at the time of starter switch welding and the processing at the time of accessory switch welding are described. Needless to say, it is desirable to use them in combination.

  Further, in the present embodiment, the remote starter that performs the start control based on the remote start instruction from the transmitter 28 has been described as an example, but the use of the present invention is not limited to this and is set. The present invention can be widely applied to vehicle start control using a relay switch, such as automatic start based on a schedule and start of a vehicle that does not use an ignition key.

  As described above, the start control device according to the present invention is useful for start control of a vehicle, and is particularly suitable for start control by control of a relay switch.

It is a schematic block diagram which shows schematic structure of the remote starter concerning the Example of this invention. 3 is a flowchart for explaining a processing operation of a main control unit shown in FIG. 1. It is explanatory drawing explaining the control output with respect to each switch by the process shown in FIG. 2, and the state of each switch. It is a flowchart explaining the processing operation | movement in the case of performing ON control of an accessory switch after the welding determination of a starter switch. FIG. 5 is an explanatory diagram for explaining a control output for each switch and a state of each switch by the processing shown in FIG. 4. It is a flowchart explaining the welding determination of an accessory switch and control of a starter switch. It is explanatory drawing explaining the control output with respect to each switch by the process shown in FIG. 6, and the state of each switch. It is a flowchart explaining the processing operation | movement in the case of performing ON control of a starter switch after the welding determination of an accessory switch. It is explanatory drawing explaining the control output with respect to each switch by the process shown in FIG. 8, and the state of each switch. It is explanatory drawing explaining the misdetection by the electric charge remaining of an ACC line. It is a schematic block diagram explaining the structural example in case IG and ST of several systems exist (the 1). It is a schematic block diagram explaining the structural example in case IG and ST of multiple systems exist (the 2). It is a flowchart explaining the processing operation in remote start control. 14 is a flowchart illustrating sub-relay RL on control illustrated in FIG. 13. It is a flowchart explaining the control of the ACC on 1st time shown in FIG. It is a flowchart explaining the IG ON control shown in FIG. It is a flowchart explaining the ACC-off 1st control shown in FIG. It is a flowchart explaining the ST on control shown in FIG. It is a flowchart explaining the ST off control shown in FIG. It is a flowchart explaining the control of ACC on 2nd time shown in FIG. It is explanatory drawing explaining sub relay failure determination. It is explanatory drawing explaining IG failure determination. It is explanatory drawing explaining ACC failure determination. It is explanatory drawing explaining ST failure determination. It is a flowchart explaining the OFF control of the ST line in the case of adopting “ACC ON after sub relay RL2 OFF at the time of ST welding”. It is a flowchart explaining ST failure determination at the time of employ | adopting "ACC on after sub relay RL2 OFF at the time of ST welding." It is a flowchart explaining the ON control of the ST line when “ST OFF at the time of ACC welding” is adopted. It is a flowchart explaining the ACC failure determination in the case of adopting “ST off at the time of ACC welding”. It is a flowchart explaining the ACC-off 1st control in the case of employ | adopting "suppress ST-on at the time of ACC welding." It is a flowchart explaining the ACC failure determination in the case of adopting “suppress ST-on during ACC welding”. It is a flowchart explaining the setting process of ACC welding determination delay time. It is a flowchart explaining the setting process of the context of ACC welding determination and ST ON control. It is a flowchart explaining the 1st control of ACC OFF in the case of using an ST ON control mode flag. It is a flowchart explaining the ST on control when using the ST on control mode flag. It is a flowchart explaining the ACC failure determination in the case of using the ST on control mode flag. It is a flowchart explaining the ACC-off 1st control in the case of switching automatically the context of ACC welding determination and ST-on control. It is a flowchart explaining ST ON control in the case of switching automatically the context of ACC welding determination and ST ON control. It is a flowchart explaining the ACC failure determination in the case of switching automatically the ACC welding determination and the front-rear relationship of ST on control.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Remote starter 11 Main control part 12 Reception processing part 13 Input processing part 14 Power supply part 15 Drive output part 16 Output monitor part 17 Output processing part 21 Ignition key switch 22 Battery 23 Door opening / closing switch 24 Door lock switch 25 Bonnet switch 26 Shift position 27 Engine speed 28 Transmitter 29 Antenna 31 Starter relay 32 Starter motor 33 Hazard lamp RL1, RL2 Sub relay SWa Accessory switch SWi, SWi1, SWi2 Ignition switch SWs, SWs1, SWs2 Starter switch

Claims (11)

A start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously,
A starter switch for controlling the start of the engine;
A sub relay for cutting off the energization of the starter switch;
An ignition switch that controls ignition of the engine, an accessory switch that controls power supply to the vehicle-mounted electrical device, and an energization circuit that independently conducts electricity to the sub-relay,
Starter switch welding detection means for detecting welding of the starter switch;
Switch control means for controlling the sub-relay to cut off the starter switch when welding of the starter switch is detected by the starter switch welding detection means;
A start control device comprising: A start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously,
A starter switch for controlling the start of the engine;
An accessory switch for controlling the power supply to the in-vehicle electrical device;
Starter switch welding detection means for detecting welding of the starter switch;
Switch control means for performing on-control of the accessory switch after engine startup after performing welding detection by the starter switch welding detection means;
A start control device comprising:   The switch further includes a sub-relay that cuts off the energization of the starter switch, and the switch control unit controls the sub-relay to cut off the energization of the starter switch when the starter switch welding detection unit detects welding of the starter switch. The start control device according to claim 2, wherein on-control of the accessory switch is executed after the operation. A start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously,
A starter switch for controlling the start of the engine;
An accessory switch for controlling the power supply to the in-vehicle electrical device;
Accessory switch welding detection means for detecting welding of the accessory switch;
Switch control means for turning off the starter switch when welding of the accessory switch is detected by the accessory switch welding detection means after on-control of the starter switch;
A start control device comprising: A start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously,
A starter switch for controlling the start of the engine;
An accessory switch for controlling the power supply to the in-vehicle electrical device;
Accessory switch welding detection means for detecting welding of the accessory switch;
Switch control means for performing on-control of the starter switch after performing welding detection by the accessory switch welding detection means;
A start control device comprising:   The start control device according to claim 5, wherein the switch control unit suppresses on-control of the starter switch when welding is detected by the accessory welding detection unit.   The start control device according to claim 6, wherein the switch control unit performs on-control of the starter switch when the welding is canceled after the detection of the welding. A start control device that performs start control of a vehicle based on a signal received from a remote operation terminal or autonomously,
A starter switch for controlling the start of the engine;
An accessory switch for controlling the power supply to the in-vehicle electrical device;
Accessory switch welding detection means for performing welding detection of the accessory switch;
Switch control means capable of switching the execution order of the on-control of the starter switch and the detection of welding of the accessory switch;
A start control device comprising:   The start control device according to any one of claims 1 to 8, wherein the switch control means is capable of changing a standby time from the off control of the accessory switch to the welding detection of the switch.   The start control device according to claim 9, wherein an execution order of on-control of the starter switch and detection of welding of the accessory switch is switched based on the standby time.   The start control device according to any one of claims 1 to 10, further comprising a manual starter switch, a manual ignition switch, and a manual accessory switch that are manually controlled by a driver.