Power supply control system and power supply control method

Abstract

To improve efficiency of power supply to electric apparatuses mounted on a vehicle.SOLUTION: A power supply control system includes: a lock control part that controls door lock devices; and a travel control part that controls a travel operation part related to either vehicle drive power, or vehicle brake, or vehicle steering. In a state where power supply to the lock control part, the travel operation part, and the travel control part is stopped by connection to an operation detection part that detects operation from outside the vehicle and outputs first trigger signals, while the first trigger signals are not output, no electric power is supplied from the power supply to the lock control part, the travel operation part and the travel control part, when the first trigger signals are output, power supply from the power supply to the lock control part and door lock devices is started, and control to unlock the door lock devices is performed by the lock control part.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a power supply control system and a power supply control method.

Background Art

[0002] In recent years, a large number of electrical devices have been mounted on vehicles such as automobiles, and it has been required to efficiently supply power to these electrical devices. For example, Patent Document 1 discloses a technique of separately wiring electrical devices mounted on an automobile into high-voltage electrical devices, electrical devices for a first function related to the running of the automobile, and electrical devices for a second function such as entertainment.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Generally, electrical devices mounted on a vehicle are activated all at once at the timing of starting the vehicle or the like, and power is constantly supplied to each electrical device while the vehicle is operating. For this reason, there has been a problem that the more electrical devices are mounted on the vehicle, the greater the power consumption becomes. The present invention has been made in view of such a background, and an object thereof is to improve the efficiency of power supply to electrical devices mounted on a vehicle.

Means for Solving the Problems

[0005] As a first aspect for achieving the above object, a lock ECU that controls a door lock device for locking a door for getting on and off a vehicle, a lock upper ECU that executes switching of the presence or absence of power supply from the power supply of the vehicle to the lock ECU and controls unlocking and locking of the door lock device by the lock ECU, a first opening / closing ECU that is connected to a first opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the first opening / closing unit, a second opening / closing ECU that is connected to a second opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the second opening / closing unit, an opening / closing upper ECU that is connected to an operation unit that detects an operation by a switch and executes at least any one of an operation of switching the presence or absence of power supply from the power supply to the first opening / closing ECU, an operation of switching the presence or absence of power supply from the power supply to the second opening / closing ECU, an operation of causing the first opening / closing ECU to execute control of the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing ECU to execute control of the opening / closing operation of the second opening / closing unit based on the operation of the operation unit, and a traveling ECU that controls a traveling system device related to any one of driving of the power of the vehicle, braking of the vehicle, and steering of the vehicle, wherein the lock upper ECU detects an operation from the outside of the vehicle and outputs a first trigger signal about to board the vehicle and outputs a first trigger signal Entry Detection ECUis connected, and in a state where the lock upper ECU stops power supply from the power source to the lock ECU, the running system device, and the running ECU, while the first trigger signal is not output, the power from the power source is not supplied to the lock ECU, the running system device, and the running ECU. When the first trigger signal is output, power supply from the power source to the lock ECU and the door lock device is started, and the lock ECU is made to execute control to unlock the door lock device. The opening / closing upper ECU acquires a second trigger signal output by the operation unit when the switch detects an operation. In a state where the opening / closing upper ECU stops power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU, while the second trigger signal is not output, the power from the power source is not supplied to the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU. When the second trigger signal is output, power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, and the opening / closing unit is started. A power supply control system is provided.

[0007] In the above power supply control system, the lock ECU , the first opening / closing ECU , and the second opening / closing ECU are configured as separate ECU from, and a plurality of the running Running System Device that control ECU ; the lock ECU , the first opening / closing ECU , and the second opening / closing ECU are configured as separate ECU from, and a plurality of off-vehicle Non-running Device that control an operation unit that is a separate operation from driving the vehicle's power, braking the vehicle, and steering the vehicle ECU ; an occupant detection unit that detects an occupant in the vehicle interior and outputs a third trigger signal; and an off-vehicle upper ECU that executes switching of the presence or absence of power supply from the vehicle's power source to the off-vehicle ECU . The off-vehicle upper ECU is from the power sourceRunning System Device , the running ECU , and the outside of the running ECU While the third trigger signal is not being output in a state where the power supply to the Running System Device , the running ECU , and the outside of the running ECU When the third trigger signal is output, the power supply is not supplied to the front Outside of the above running ECU The power supply from the power source may be started immediately.

[0008] In the above power supply control system, the lock upper ECU Entry Detection ECU and the lock ECU, the opening / closing host ECU is disposed between the operation unit, and the first opening / closing ECU and the second opening / closing ECU, Entry Detection ECU and a central ECU located between the operation unit and the lock upper ECU and between the operation unit and the opening / closing upper ECU, wherein in a state in which power supply to the lock ECU, the first opening / closing ECU, the second opening / closing ECU, the traveling system device, and the traveling ECU is stopped, while the first trigger signal and the second trigger signal are not output, the central ECU keeps a state in which power is not supplied from the power source to the lock ECU, the first opening / closing ECU, the second opening / closing ECU, the traveling system device, and the traveling ECU, and when the first trigger signal and the second trigger signal are output, starts power supply from the power source to the lock ECU, the first opening / closing ECU, and the second opening / closing ECU.

[0009] In the above power supply control system, ECU Top of the driving range that switches power supply to and from the ECU The center ECU The lock upper ECU , the opening and closing upper ECU , the top of the non-running ECU , and the above-mentioned running top ECU At least two alternative targets selected from ECU The function of the replacement targetECU Alternatively, it may be configured to execute switching of power supply from the power source based on the first trigger signal, the second trigger signal, and the third trigger signal.

[0010] In the above power supply control system, a running detection unit that outputs a fourth trigger signal indicating the running state of the vehicle is provided, and the center ECU When it is determined that the vehicle is running based on the fourth trigger signal, the first switch ECU the second switch ECU It may be configured not to supply power from the power source to at least any one of the first switch unit and the second switch unit.

[0011] In the above power supply control system, an impact detection unit that detects an impact applied to the vehicle is provided, and the center ECU When the impact detection unit detects an impact, the first switch ECU the second switch ECU It may be configured to supply power from the power source to at least any one of the first switch unit and the second switch unit.

[0012] In the above power supply control system, the central ECU, in response to an operation of a second operation unit that detects an operation by a second switch, Entry Detection ECU It may be configured not to supply power from the power source, and not to supply power from the power source to at least any one of the central ECU, the lock upper ECU, the switch upper ECU, and the out-of-running upper ECU.

[0013] In the above power supply control system, it may be configured to include one ECU that executes the functions of the lock upper ECU and the switch upper ECU .

[0014] In the above power supply control system, the center ECUDuring operation of the cell motor provided in the internal combustion engine of the vehicle, the power supply from the power source to at least a part of the non-driving ECU and the Non-running Device is stopped, and the power supply from the power source to the driving ECU and the Running System Device may be configured to be performed.

[0015] As a second aspect for achieving the above object, a lock ECU that controls a door lock device for locking a door for getting on and off a vehicle, a lock upper ECU that executes switching of the presence or absence of power supply from the vehicle power source to the lock ECU and causes the lock ECU to control unlocking and locking of the door lock device, a first opening / closing ECU that is connected to a first opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the vehicle cargo compartment, and the window of the vehicle and controls the first opening / closing unit, a second opening / closing ECU that is connected to a second opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the vehicle cargo compartment, and the window of the vehicle and controls the second opening / closing unit, an opening / closing upper ECU that is connected to an operation unit that detects an operation by a switch and executes at least any one of an operation of switching the presence or absence of power supply from the power source to the first opening / closing ECU, an operation of switching the presence or absence of power supply from the power source to the second opening / closing ECU, an operation of causing the first opening / closing ECU to control the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing ECU to control the opening / closing operation of the second opening / closing unit based on the operation of the operation unit, and a traveling ECU that controls a traveling system device related to any one of driving of the vehicle power, braking of the vehicle, and steering of the vehicle. By the power supply control system including Entry Detection ECU from outside the vehicle about to board the vehicleObtain a first trigger signal output according to an operation, and while the power supply to the lock ECU, the running system device, and the running ECU from the power supply is stopped, while the first trigger signal is not output, the lock ECU, the running system device, and the running ECU are in a state where no power is supplied from the power supply. When the first trigger signal is output, start the power supply from the power supply to the lock ECU and the door lock device, and the lock ECU executes control to unlock the door lock device. Obtain a second trigger signal output by the operation unit when the switch detects an operation. While the power supply to the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU from the power supply is stopped, while the second trigger signal is not output, the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU are in a state where no power is supplied from the power supply. When the second trigger signal is output, the opening / closing upper ECU executes control to start the power supply from the power supply to the first opening / closing ECU, the second opening / closing ECU, and the opening / closing unit. A power supply control method can be mentioned.

Effect of the Invention

[0016] According to the above configuration, by switching the power supply to the operation unit and the control unit of the vehicle according to the necessity of control, the efficiency of power supply can be improved.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Embodiments for Carrying Out the Invention

[0018] [1. Configuration of Vehicle Control System] FIG. 1 is a schematic configuration diagram of a vehicle control system 1 according to an embodiment of the present invention. The vehicle control system 1 corresponds to an example of a power supply control system.

[0019] The vehicle control system 1 is provided in a vehicle and controls various operations including the running of the vehicle. In this embodiment, as an example of the vehicle, a four-wheel automobile is shown. This vehicle is provided with a plurality of doors through which people get on and off, and some of the doors are sliding doors. The vehicle described in this embodiment has a passenger compartment where people ride and a space for loading luggage, and is provided with a rear gate through which access to this space is possible. In the passenger compartment, seats on which the passengers who have boarded sit are arranged. A person who gets on the vehicle is hereinafter referred to as a passenger. Passengers include the driver and people other than the driver.

[0020] In the following description, a configuration is shown in which the vehicle is provided with an ECU that controls various functional parts. An ECU (Electronic Control Unit) has a function of controlling a motor, an actuator, a sensor, etc., and is a circuit composed of a semiconductor device and other peripheral elements. In the following, a plurality of ECUs classified by vehicle functions and devices controlled by each ECU will be described, but this configuration is merely an example. For example, a plurality of ECUs described below may actually be composed of one semiconductor device, and conversely, one ECU shown below may be realized by a plurality of semiconductor devices. Also, the vehicle may be provided with functional parts and ECUs not shown in FIG. 1.

[0021] FIG. 1 shows a fuel supply device 31, a cell motor 32, a brake device 33, and a power steering device 34 as a running operation part related to any one of driving the power of the vehicle, braking the vehicle, and steering the vehicle. In addition, as an operation unit of the vehicle other than the traveling operation unit, an audio device 37, an air conditioner 38, and a meter panel 39 are shown in FIG. 1 as non-traveling operation units. In addition, as a normal operation unit that operates regardless of the traveling state of the vehicle, a TSU (Telematics Service Unit) 36 and a lighting device 40 are shown in FIG. 1. The normal operation unit may be included in the non-traveling device. In addition, a door lock device 35 that locks the doors and the rear gate for getting on and off, a slide door opening / closing device 41 that opens and closes the slide door, and a rear gate opening / closing device 42 that opens and closes the rear gate are shown in FIG. 1. The slide door opening / closing device 41 and the rear gate opening / closing device 42 respectively correspond to an example of a first opening / closing unit and a second opening / closing unit.

[0022] The vehicle control system 1 includes an engine ECU 11, a brake ECU 12, and a power steering (PS) ECU 13 as a traveling control unit that controls operations related to the traveling of the vehicle. The engine ECU 11 performs control necessary for the operation of the internal combustion engine (engine). Specifically, the engine ECU 11 supplies power to the fuel supply device 31 and the cell motor 32 and controls their operations. The brake ECU 12 supplies power to the brake device 33 and controls the operation of the brake device 33. The power steering ECU 13 supplies power to the power steering device 34 and controls the operation of the power steering device 34. The engine ECU 11, the brake ECU 12, and the power steering ECU 13 correspond to an example of the traveling control unit. The fuel supply device 31, the cell motor 32, the brake device 33, and the power steering device 34 correspond to an example of the traveling operation unit.

[0023] The vehicle control system 1 includes a door lock ECU 14, a communication ECU 15, an audio control ECU 16, an air conditioner ECU 17, a meter ECU 18, a lighting control ECU 19, a slide door opening / closing ECU 20, and a rear gate opening / closing ECU 21.

[0024] The power supply control device 100 supplies power to each control unit of the vehicle based on the power supplied from the vehicle's power line P0. The targets to which the power supply control device 100 supplies power include the engine ECU 11, the brake ECU 12, the power steering ECU 13, the door lock ECU 14, the communication ECU 15, the audio control ECU 16, the air conditioner ECU 17, the meter ECU 18, the lighting control ECU 19, the sliding door opening / closing ECU 20, and the rear gate opening / closing ECU 21. The power supply control device 100 supplies power to the entry detection ECU 22, the occupant detection ECU 23, the vehicle speed detection ECU 24, and the impact detection ECU 25, which will be described later, based on the power supplied through the power line P0.

[0025] The power line P0 is connected to the +B power supply of the vehicle. The +B power supply is the so-called vehicle power supply, and is connected to the battery mounted on the vehicle and the generator driven by the vehicle's engine. When the vehicle is equipped with a driving motor and the motor performs a regenerative operation, the power generated by regeneration may be supplied to the +B power supply.

[0026] The door lock ECU 14 controls the door lock device 35 to lock and unlock the door. The door lock ECU 14 switches the on / off of the power supply to the door lock device 35. The door lock ECU 14 corresponds to an example of a lock control unit. The communication ECU 15 is connected to the TSU 36. The communication ECU 15 controls the TSU 36 to execute data communication through the mobile communication line. The communication ECU 15 switches the on / off of the power supply to the TSU 36. The audio control ECU 16 switches the on / off of the power supply to the audio device 37 and controls the audio device 37. The air conditioner ECU 17 switches the on / off of the power supply to the air conditioner 38 and controls the air conditioner 38. The meter ECU 18 switches the on / off of the power supply to the meter panel 39 and controls the meter panel 39. The lighting control ECU 19 switches the on / off of the power supply to the lighting devices 40 grounded indoors and outdoors of the vehicle and controls the lighting state of the lighting devices 40. The sliding door opening / closing ECU 20 switches the on / off of the power supply to the sliding door opening / closing device 41. The sliding door opening / closing ECU 20 controls the sliding door opening / closing device 41 to execute the opening / closing operation of the sliding door. The rear gate opening / closing ECU 21 switches the on / off of the power supply to the rear gate opening / closing device 42. The rear gate opening / closing ECU 21 controls the rear gate opening / closing device 42 to execute the opening / closing operation of the rear gate. The door lock ECU 14 corresponds to an example of a lock control unit, and the audio control ECU 16, the air conditioner ECU 17, and the meter ECU 18 correspond to examples of non-driving control units. The sliding door opening / closing ECU 20 corresponds to an example of a first opening / closing control unit, the rear gate opening / closing ECU 21 corresponds to an example of a second opening / closing control unit, the sliding door opening / closing device 41 corresponds to an example of a first opening / closing part, and the rear gate opening / closing device 42 corresponds to an example of a second opening / closing part.

[0027] The power supply control device 100 outputs a control signal for instructing the door lock ECU 14 to unlock the door lock device 35. The power supply control device 100 outputs a control signal for instructing the sliding door opening / closing ECU 20 to open the sliding door by the sliding door opening / closing device 41. The power supply control device 100 outputs a control signal for instructing the rear gate opening / closing ECU 21 to open the rear gate by the rear gate opening / closing device 42.

[0028] The communication ECU 15 and the lighting control ECU 19 correspond to the normal operation control unit. The audio control ECU 16, the air conditioner ECU 17, and the meter ECU 18 correspond to an example of the control unit outside running. The sliding door opening / closing ECU 20 corresponds to an example of the first opening / closing control unit, and the rear gate opening / closing ECU 21 corresponds to an example of the second opening / closing control unit.

[0029] In FIG. 1, as detection units provided in the vehicle, a wireless reception unit 43, a touch sensor 44, a camera 45, a seating sensor 46, a seat belt sensor 47, a vehicle speed sensor 48, and a G sensor 49 are provided. The wireless reception unit 43 receives a wireless signal transmitted by a FOB (Frequency Operated Button) key. The touch sensor 44 is provided on the door handle of the vehicle and detects a touch operation performed by a person trying to board the vehicle. The camera 45 is a digital camera that photographs the interior of the vehicle. The seating sensor 46 is a sensor that detects that a person is sitting on the seat of the vehicle, and includes, for example, a pressure sensor embedded in the seat. The seat belt sensor 47 is, for example, a switch-type sensor built into the buckle of the seat belt and detects that the seat belt is fastened. The seating sensor 46 and the seat belt sensor 47 are arranged on each seat provided in the vehicle.

[0030] The vehicle control system 1 includes an entry detection ECU 22, an occupant detection ECU 23, a vehicle speed detection ECU 24, and an impact detection ECU 25 as control units for controlling the detection units. The entry detection ECU 22 is connected to the wireless reception unit 43 and the touch sensor 44. Based on the outputs of the wireless reception unit 43 and the touch sensor 44, the entry detection ECU 22 detects an operation in which a person attempts to board the vehicle, that is, an entry operation. When the entry detection ECU 22 detects an entry operation, it outputs a trigger signal TG1. The occupant detection ECU 23 is connected to the camera 45, the seating sensor 46, and the seat belt sensor 47. Based on at least any one of the captured image of the camera 45, the detection state of the seating sensor 46, and the detection state of the seat belt sensor 47, the occupant detection ECU 23 detects that a person is boarding the vehicle. When the occupant detection ECU 23 detects that a person is boarding the vehicle, it outputs a trigger signal TG3. The vehicle speed detection ECU 24 is connected to the vehicle speed sensor 48 and detects the traveling speed of the vehicle. When the traveling speed of the vehicle is not 0, that is, when the vehicle is not stopped, the vehicle speed detection ECU 24 outputs a trigger signal TG4. The impact detection ECU 25 is connected to the G sensor 49 and, when the G sensor 49 detects an acceleration exceeding a preset threshold value, outputs a trigger signal TG5 indicating that an impact has been applied to the vehicle. The acceleration exceeding the preset threshold value indicates, for example, that an object has collided with the vehicle. The entry detection ECU 22 corresponds to an example of an operation detection unit. The occupant detection ECU 23 corresponds to an example of an occupant detection unit, the vehicle speed detection ECU 24 corresponds to an example of a vehicle speed detection unit, and the impact detection ECU 25 corresponds to an example of an impact detection unit.

[0031] A door operation unit 51, an ignition (IG) switch 52, and a current cut operation lever 53 are connected to the power supply control device 100. The door operation unit 51 is an operation unit that a person operates to open the doors for getting in and out of the vehicle, and is, for example, a lever or a handle. The door operation unit 51 includes a switch-type sensor that switches to on by operating the lever or the handle. When the switch of the door operation unit 51 is turned on, it outputs a trigger signal TG2. The ignition switch 52 is a switch that instructs the start of the vehicle. Starting the vehicle means starting the engine of the vehicle, starting the power supply to each part of the vehicle, etc. Since the vehicle of this embodiment is equipped with an engine, the ignition switch 52 is a switch that instructs the start of the engine. The ignition switch 52 outputs a trigger signal TG6 according to the operation. The current cut operation lever 53 is a lever that instructs to cut the power supply of the vehicle, and includes a switch that switches to on according to the operation of the lever. The current cut operation lever 53 outputs a trigger signal TG7 according to the operation of the lever. The vehicle control system 1 stops the power supply to the entry detection ECU 22, the wireless reception unit 43, and the touch sensor 44 according to the operation of the current cut operation lever 53. In this case, the entry detection ECU 22 cannot detect the detection of the FOB key or the operation of the door handle. The current cut operation lever 53 is operated, for example, when the vehicle is loaded on a freight vehicle or a ship for transportation. By operating the current cut operation lever 53, the standby current flowing through the vehicle during transportation can be reduced. The door operation unit 51 corresponds to an example of the operation unit, and the current cut operation lever 53 corresponds to an example of the second operation unit. Trigger signals TG1, TG2, TG3, TG4, TG5, TG6, and TG7 are input to the power supply control device 100. The trigger signal TG1 corresponds to the first trigger signal, the trigger signal TG2 corresponds to the second trigger signal, the trigger signal TG3 corresponds to the third trigger signal, and the trigger signal TG4 corresponds to the fourth trigger signal, respectively.

[0032] [2. Configuration of Power Supply Control Device] FIG. 2 is a configuration diagram of the power supply control device 100. For the sake of explanation, FIG. 2 shows the configuration of a vehicle connected to the power supply control device 100. Among the control units connected to the power supply control device 100, the running system ECU 61 shows, for example, the engine ECU 11, the brake ECU 12, and the power steering ECU 13 shown in FIG. 1 as one block. The running system device 71 shows the fuel supply device 31, the cell motor 32, the brake device 33, and the power steering device 34 as one block. Similarly, the normal operation control ECU 62 includes the communication ECU 15 and the lighting control ECU 19, and the normal operation unit 72 includes the TSU 36 and the lighting device 40. The off-running ECU 63 includes the audio control ECU 16, the air conditioner ECU 17, and the meter ECU 18, and the off-running device 73 includes the audio equipment 37, the air conditioner 38, and the meter panel 39. The running system ECU 61 corresponds to an example of a running control unit, and the running system device 71 corresponds to an example of a running operation unit. The off-running ECU 63 corresponds to an example of an off-running control unit, and the off-running device 73 corresponds to an example of an off-running operation unit.

[0033] The power supply control device 100 includes a central ECU / core ECU 101, a front upper ECU 111, a central upper ECU 112, and a rear upper ECU 113. The central ECU / core ECU 101 is connected to the power supply line P0 by the power supply line P11. The front upper ECU 111 is connected to the power supply line P0 by the power supply line P12. Similarly, the central upper ECU 112 and the rear upper ECU 113 are connected to the power supply line P0 by the power supply lines P13 and P14, respectively. The central ECU / core ECU 101 corresponds to an example of a central control unit, and the front upper ECU 111 corresponds to an example of a running upper control unit. The central upper ECU 112 corresponds to an example of a lock upper control unit, an off-running upper control unit, and a running upper control unit, and the rear upper ECU 113 corresponds to an example of an opening / closing upper control unit.

[0034] The front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 are each connected to a plurality of ECUs mounted on the vehicle and operate as upper ECUs with respect to these ECUs. In the present embodiment, the front upper ECU 111 is connected to the running system ECU 61, and the central upper ECU 112 is connected to the door lock ECU 14, the entry detection ECU 22, the running system ECU 61, the normal operation control ECU 62, and the non-running ECU 63. The rear upper ECU 113 is connected to the sliding door opening / closing ECU 20 and the rear gate opening / closing ECU 21.

[0035] In the present embodiment, as upper ECUs, an example is given of the front upper ECU 111 that controls the ECUs arranged at the front part of the vehicle, the central upper ECU 112 that controls the ECUs arranged at the central part of the vehicle, and the rear upper ECU 113 that controls the ECUs arranged at the rear part of the vehicle. Since each ECU shown in FIG. 1 is arranged at various parts of the vehicle, it is reasonable to connect to the upper ECU based on the position of the ECU in the vehicle. These are just examples, and for example, the ECUs mounted on the vehicle may be classified according to the type and function of the ECUs and then connected to the upper ECU.

[0036] The upper ECU switches the power supply to the lower ECU on and off and outputs a control signal. For example, the front upper ECU 111 supplies power to the running system ECU 61 through the power line P1. In other words, the front upper ECU 111 is arranged between the power line P1 of the running system ECU 61 and the power line P12 and disconnects the power supply from the power line P12 to the power line P1. By the front upper ECU 111 supplying power to the running system ECU 61, the running system ECU 61 and the running system device 71 become operable states.

[0037] The central upper ECU 112 supplies power to the door lock ECU 14, the entry detection ECU 22, the normal operation control ECU 62, and the off - vehicle ECU 63. As a result, each of these ECUs, together with the door lock device 35, the wireless reception unit 43, the touch sensor 44, the normal operation unit 72, and the off - vehicle device 73, can be put into an operable state. Also, the central upper ECU 112 outputs a control signal instructing unlocking to the door lock ECU 14 through the signal line L1.

[0038] The rear upper ECU 113 supplies power to the sliding door opening / closing ECU 20 and the rear gate opening / closing ECU 21 through the power lines P7 and P8. As a result, the sliding door opening / closing ECU 20, the rear gate opening / closing ECU 21, the sliding door opening / closing device 41, and the rear gate opening / closing device 42 can be made operable. The rear upper ECU 113 outputs a control signal instructing the opening of the sliding door to the sliding door opening / closing ECU 20 through the signal line L2. The rear upper ECU 113 outputs a control signal instructing the opening of the rear gate to the rear gate opening / closing ECU 21 through the signal line L3.

[0039] The front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 are connected to the central ECU / core ECU 101. The central ECU / core ECU 101 controls the front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 in response to the input of trigger signals TG1 - TG7.

[0040] In the configuration shown in FIGS. 1 and 2, each ECU connected to the front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 has a function of transmitting and receiving various data through signal lines (not shown). This signal line is, for example, a CAN (Controller Area Network) bus. The signal lines L1, L2, and L3 shown in FIG. 2 may be signal lines different from the CAN bus or may be configured using the CAN bus.

[0041] FIGS. 3, 4, and 5 are diagrams showing configuration examples of ECUs connected to the power supply control device 100. Figure 3 shows the configuration of the entry detection ECU 22. The entry detection ECU 22 includes a CPU 201, a CAN communication unit 202, a regulator 203, and switching elements 204 and 205. The CPU (Central Processing Unit) 201 is a processor that realizes the processing functions of the entry detection ECU 22 and can also be called a microcontroller.

[0042] The CAN communication unit 202 is a communication circuit connected to the CAN bus. The CAN communication unit 202 executes data communication through the CAN bus according to the control of the CPU 201. The regulator 203 converts the voltage of the power supplied from the power line P3 and supplies power to the CPU 201. A switching element 204 is arranged between the power line P3 and the regulator 203. The switching element 204 is composed of, for example, an FET (Field Effect Transistor), and turns on / off the power supply from the power line P3 to the regulator 203 according to the voltage input from the switching element 205. The switching element 205 is connected to a line through which an operation signal is input from the wireless reception unit 43 and the touch sensor 44 to the CPU 201. When the wireless reception unit 43 or the touch sensor 44 outputs an operation signal, the switching element 205 switches to on, outputs a voltage to the switching element 204, and switches the switching element 204 to on.

[0043] In this way, in the entry detection ECU 22, after the power supply from the power line P3 is started, when an operation signal is input from the wireless reception unit 43 or the touch sensor 44, the power supply from the regulator 203 to the CPU 201 and the CAN communication unit 202 is started. When the power supply from the regulator 203 to the CPU 201 is started, the CPU 201 is activated. The CPU 201 outputs a trigger signal TG1 according to the operation of the wireless reception unit 43 or the touch sensor 44. After startup, the CPU 201 self-latches the output to the switching element 204. As a result, while power is being supplied from the power line P3, the CPU 201 and the CAN communication unit 202 can continue to operate. When the central upper ECU 112 cuts off the power supply to the power line P3, the entry detection ECU 22 stops operating.

[0044] Figure 4 is a diagram showing the configuration of the sliding door opening / closing ECU 20. The rear gate opening / closing ECU 21 is configured in the same manner as the sliding door opening / closing ECU 20 shown in Figure 4. The sliding door opening / closing ECU 20 includes a CPU 211, a CAN communication unit 212, a regulator 213, and switching elements 214 and 215. The CPU 211 is a processor that realizes the processing functions of the sliding door opening / closing ECU 20.

[0045] The CAN communication unit 212 is a communication circuit connected to the CAN bus. The CAN communication unit 212 executes data communication through the CAN bus according to the control of the CPU 211. The regulator 213 converts the voltage of the power supplied from the power line P7 and supplies power to the CPU 211. A switching element 214 is arranged between the power line P7 and the regulator 213. The switching element 214 is composed of, for example, an FET, and turns on / off the power supply from the power line P7 to the regulator 213 according to the voltage input from the switching element 215. The switching element 215 is connected to the signal line L2. When a signal is input from the rear upper ECU 113 to the signal line L2, the switching element 215 switches to the on state and outputs a voltage to the switching element 214, switching the switching element 214 to the on state.

[0046] In the sliding door opening / closing ECU 20, after the power supply from the power line P7 starts and the signal on the signal line L2 is input, the power supply from the regulator 213 to the CPU 211 and the CAN communication unit 212 starts. When the power supply from the regulator 213 to the CPU 211 starts, the CPU 211 starts up. The CPU 211 operates the sliding door opening / closing device 41 according to the signal on the signal line L2 and executes the operation of opening the sliding door. After startup, the CPU 211 self-latches the output to the switching element 214. As a result, while power is supplied from the power line P7, the CPU 211 and the CAN communication unit 212 can continue to operate. When the rear upper ECU 113 cuts off the power supply to the power line P7, the sliding door opening / closing ECU 20 stops operating.

[0047] FIG. 5 is a diagram showing the configurations of the air conditioner ECU 17 and the vehicle speed detection ECU 24. The configuration shown in FIG. 5 is an example. For example, the engine ECU 11, the brake ECU 12, the power steering ECU 13, the communication ECU 15, the audio control ECU 16, the meter ECU 18, and the lighting control ECU 19 can be configured in the same manner as the air conditioner ECU 17 shown in FIG. 5. Also, the impact detection ECU 25 can be configured in the same manner as the vehicle speed detection ECU 24 shown in FIG. 5.

[0048] The air conditioner ECU 17 includes a CPU 221, a CAN communication unit 222, and a regulator 223. The CPU 221 is a processor that realizes the processing functions of the air conditioner ECU 17.

[0049] The CAN communication unit 222 is a communication circuit connected to the CAN bus. The CAN communication unit 222 executes data communication through the CAN bus according to the control of the CPU 221. The regulator 223 converts the voltage of the power supplied from the power supply control device 100 and supplies power to the CPU 221. The CPU 221 is activated when the power supply from the power supply control device 100 is started and starts operating. The CPU 221 operates the air conditioner 38, which is the control target, based on the data received via the CAN bus. When the power supply control device 100 cuts off the power supply to the air conditioner ECU 17, each part of the air conditioner ECU 17 including the CPU 221 stops operating.

[0050] The vehicle speed detection ECU 24 includes a CPU 231, a CAN communication unit 232, and a regulator 233. The CPU 231 is a processor that realizes the processing function of the vehicle speed detection ECU 24. A signal is input to the vehicle speed detection ECU 24 from the vehicle speed sensor 48.

[0051] The CAN communication unit 232 is a communication circuit connected to the CAN bus. The CAN communication unit 232 executes data communication through the CAN bus according to the control of the CPU 231. The regulator 233 converts the voltage of the power supplied from the power supply control device 100 and supplies power to the CPU 231. The CPU 231 is activated when the power supply from the power supply control device 100 is started and starts operating. The CPU 231 determines whether the vehicle is stopped or running based on the signal input from the vehicle speed sensor 48. When the vehicle is running, the CPU 231 outputs a trigger signal TG4. When the power supply control device 100 cuts off the power supply to the vehicle speed detection ECU 24, each part of the vehicle speed detection ECU 24 including the CPU 231 stops operating.

[0052] Figure 6 is an explanatory diagram showing the redundant configuration of the power supply control device 100. The upper-level ECU included in the power supply control device 100 is configured such that when a failure occurs in any one of the upper-level ECUs, another upper-level ECU can substitute and execute the function of the failed upper-level ECU. An example of this configuration is shown in Figure 6.

[0053] In the configuration shown in FIG. 6, a front upper ECU 111, a center upper ECU 112, a rear upper ECU 113, and a central ECU / core ECU 101 are connected to a power supply line P1 that supplies power from the power supply control device 100 to the running system ECU 61. Similarly, the front upper ECU 111, the center upper ECU 112, the rear upper ECU 113, and the central ECU / core ECU 101 are connected to the power supply lines P3, P5, P6, P7, and P8. Also, the signal lines L1, L2, and L3 are connected to the front upper ECU 111, the center upper ECU 112, the rear upper ECU 113, and the central ECU / core ECU 101. In addition, trigger signals TG1 to TG7 are input to the front upper ECU 111, the center upper ECU 112, and the rear upper ECU 113.

[0054] When a failure occurs in the central ECU / core ECU 101, the central ECU / core ECU 101 detects the failure by its self-diagnosis function, selects at least one of the front upper ECU 111, the center upper ECU 112, and the rear upper ECU 113, and notifies the failure. The upper ECU that receives the notification functions as an alternative to the central ECU / core ECU 101.

[0055] The central ECU / core ECU 101 detects that a failure has occurred in any of the front upper ECU 111, the center upper ECU 112, and the rear upper ECU 113 by its failure diagnosis function. When a failure occurs in any of the front upper ECU 111, the center upper ECU 112, and the rear upper ECU 113, the central ECU / core ECU 101 selects at least one upper ECU to replace the function, and causes the selected upper ECU to function as an alternative to the failed upper ECU. For example, when a failure occurs in the front upper ECU 111, the central ECU / core ECU 101 causes the center upper ECU 112 to replace the function of turning on / off the power supply to the running system ECU 61.

[0056] The configuration shown in FIG. 6 is an example. Any one of the central ECU / core ECU 101, the front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 may have a configuration in which at least one other upper UEC can replace the function.

[0057] [3. Operation of Power Supply Control Device] FIG. 7 is a timing chart showing the operation of the power supply control device 100. FIG. 7 shows the power supply state of the ECU connected to the power supply control device 100, and more specifically, whether the power is on or off. FIG. 7(a) shows the entry detection ECU 22, FIG. 7(b) shows the normal operation control ECU 62, FIG. 7(c) shows the door lock ECU 14, FIG. 7(d) shows the sliding door opening / closing ECU 20, FIG. 7(e) shows the rear gate opening / closing ECU 21, FIG. 7(f) shows the off-vehicle ECU 63, and FIG. 7(g) shows the power supply state of the running system ECU 61.

[0058] At time t0, the vehicle is parked, the engine and the like are stopped, and there is no person in the vehicle. At time t0, power is supplied to the entry detection ECU 22. The power of other parts is off.

[0059] The entry detection ECU 22 detects the FOB key or a person's touch operation and outputs a trigger signal TG1 (time t1). In response to this, the power supply control device 100 switches the power of the door lock ECU 14 on at time t1 and outputs a control signal instructing the door lock ECU 14 to unlock. Thereby, the door lock device 35 unlocks the door lock, and it becomes possible to board the vehicle.

[0060] At time t1, the power supply control device 100 turns on the normal operation control ECU 62. Thereby, communication by the TSU 36 and use of the lighting device 40 become possible.

[0061] When a person attempting to board the vehicle moves the door operation unit 51, a trigger signal TG2 is output (time t2). As described above, the door operation unit 51 is an operation unit provided for each of the sliding door and the rear gate. At time t2, either one or both of them are operated. In response to the output of the trigger signal TG2, the power supply control device 100 starts supplying power to both the rear gate opening / closing ECU 21 and the entry detection ECU 22. Further, at time t2, the power supply control device 100 outputs a control signal to open the door.

[0062] For example, when the door operation unit 51 provided on the sliding door outputs the trigger signal TG2 (time t2), the power supply control device 100 switches on the power supplies of both the sliding door opening / closing ECU 20 and the rear gate opening / closing ECU 21. In this case, the power supply control device 100 outputs a control signal to cause the sliding door opening / closing device 41 to open the sliding door to the sliding door opening / closing ECU 20.

[0063] When the passenger detection ECU 23 detects that a person is inside the vehicle, it outputs a trigger signal TG3 (time t3). In response to the trigger signal TG3, the power supply control device 100 switches on the power supply of the off - running ECU 63. Thereby, it becomes possible to operate the audio device 37, the air conditioner 38, etc.

[0064] Then, when the ignition switch 52 is operated, a trigger signal TG6 is output (time t4). At time t4 in FIG. 7, an example is shown in which the start of the engine is instructed by the operation of the ignition switch 52. In response to the output of the trigger signal TG6, the power supply control device 100 switches on the power supply of the running system ECU 61. Thereby, from time t4, the starter motor 32 operates and the engine starts.

[0065] The power supply control device 100 switches off the power supply to the off-vehicle ECU 63 from time t4 to time t5, which is a predetermined time after time t4. The period t4 - t5 is the period during which the cell motor 32 is driven. By stopping the power supply to the off-vehicle ECU 63, the power consumption of the off-vehicle ECU 63 and the operating parts connected to the off-vehicle ECU 63 during the operation of the cell motor 32 is suppressed. As a result, the load on the vehicle's power supply can be reduced. Also, since the power required by the cell motor 32 is surely supplied, the complete explosion success rate during the operation of the cell motor 32 is increased. Thereby, it becomes possible to start the engine more smoothly. When the operation of the cell motor 32 ends at time t5, the power supply control device 100 resumes the power supply to the off-vehicle ECU 63.

[0066] When the vehicle starts and the vehicle speed becomes non-zero, the vehicle speed detection ECU 24 outputs a trigger signal TG4 (time t6). In response to the output of the trigger signal TG4, the power supply control device 100 turns off the power supplies to the slide door opening / closing ECU 20 and the rear gate opening / closing ECU 21. Thereby, the power consumption of the slide door opening / closing ECU 20, the rear gate opening / closing ECU 21, the slide door opening / closing device 41, and the rear gate opening / closing device 42 can be suppressed. Also, since the doors are not opened or closed while the vehicle is running, the passengers are not inconvenienced.

[0067] When the vehicle stops running, the output of the trigger signal TG4 stops (time t7). In response to the stop of the output of the trigger signal TG4, the power supply control device 100 resumes the power supplies to the door lock ECU 14, the slide door opening / closing ECU 20, and the rear gate opening / closing ECU 21.

[0068] Furthermore, when the ignition switch 52 is turned off, the ignition switch 52 stops the output of the trigger signal TG6 (time t8). In response to the stop of the output of the trigger signal TG6, the power supply control device 100 stops the power supply to the running system ECU 61.

[0069] When all the people riding in the vehicle get off, the passenger detection ECU 23 stops outputting the trigger signal TG3 (time t9). In response to the stop of the output of the trigger signal TG3, the power supply control device 100 stops the power supply to the door lock ECU 14, the slide door opening / closing ECU 20, the rear gate opening / closing ECU 21, and the normal operation control ECU 62. The power supply control device 100 may delay the timing of turning off the power supply to the door lock ECU 14 by a predetermined time from time t9.

[0070] After the vehicle stops, when the current cut operation lever 53 is operated and the current cut operation lever 53 outputs a trigger signal TG10 in response to the operation (time t10), the power supply control device 100 stops the power supply to the entry detection ECU 22. As a result, the entry detection ECU 22, the wireless reception unit 43 and the touch sensor 44 connected to the entry detection ECU 22 stop. Therefore, the standby current while the vehicle is not in use can be reduced. At time t10, the power supply control device 100 may stop the power supply to at least any one of the central ECU / core ECU 101, the front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113. In this case, the standby current can be further reduced.

[0071] Also, when the impact detection ECU 25 detects an impact during the running of the vehicle, the impact detection ECU 25 outputs a trigger signal TG5 (time t11). At time t11, the power supply control device 100 starts the power supply to the door lock ECU 14, the slide door opening / closing ECU 20, and the rear gate opening / closing ECU 21. As a result, the passengers can get out of the vehicle. At time t11, the power supply control device 100 may output a control signal to the slide door opening / closing ECU 20 and the rear gate opening / closing ECU 21 to execute control to open the slide door and the rear gate.

[0072] [4. Other Embodiments] The above embodiments show a specific example to which the present invention is applied, and do not limit the forms to which the invention is applied.

[0073] The vehicle to which the vehicle control system 1 is applied may be a passenger car or a freight car, and is not limited to four-wheeled vehicles. For example, it can also be applied to vehicles without sliding doors. The vehicle is not limited to a vehicle driven by an internal combustion engine, and may be an electric vehicle equipped with a battery and a motor. In this case, the traveling operation unit includes a motor, and the traveling control unit includes an ECU that controls the motor. It is also possible to apply the vehicle control system 1 to a hybrid vehicle equipped with an internal combustion engine and a motor.

[0074] In the above embodiment, the slide door opening / closing device 41 is shown as the first opening / closing unit, and the rear gate opening / closing device 42 is shown as the second opening / closing unit, but this is just an example. The first opening / closing unit and the second opening / closing unit may be a power window device that opens and closes a window, a device that opens and closes a sunroof, or the like.

[0075] The connection between the front upper ECU 111, the central upper ECU 112, and the rear upper ECU 113 included in the power supply control device 100 and each ECU can be arbitrarily changed. In the above embodiment, an example is shown in which the central upper ECU 112 operates as a lock upper control unit, a traveling external upper control unit, and a traveling upper control unit, and the rear upper ECU 113 operates as an opening / closing upper control unit. However, the correspondence of these functions can be changed according to the connection form with each ECU.

[0076] [5. Configuration Supported by the Above Embodiment] The above embodiment is a specific example of the following configuration.

[0077] (1) A lock control unit that controls a door lock device for locking and unlocking the doors for getting on and off a vehicle, a lock upper control unit that executes switching of the presence or absence of power supply from the power supply of the vehicle to the lock control unit and causes the lock control unit to control unlocking and locking of the door lock device, a first opening / closing control unit that is connected to a first opening / closing unit that drives an opening / closing unit including any one of the doors for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the first opening / closing unit, a second opening / closing control unit that is connected to a second opening / closing unit that drives an opening / closing unit including any one of the doors for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the second opening / closing unit, an opening / closing upper control unit that is connected to an operation unit that detects an operation by a switch and executes at least any one of an operation of switching the presence or absence of power supply from the power supply to the first opening / closing control unit, an operation of switching the presence or absence of power supply from the power supply to the second opening / closing control unit, an operation of causing the first opening / closing control unit to execute control of the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing control unit to execute control of the opening / closing operation of the second opening / closing unit based on the operation of the operation unit, and a traveling control unit that controls a traveling operation unit related to any one of driving of the power of the vehicle, braking of the vehicle, and steering of the vehicle. The lock upper control unit is connected to an operation detection unit that detects an operation from the outside of the vehicle and outputs a first trigger signal. In a state where the power supply from the power supply to the lock control unit, the traveling operation unit, and the traveling control unit is stopped, while the first trigger signal is not output, the power supply from the power supply to the lock control unit, the traveling operation unit, and the traveling control unit is not supplied, and when the first trigger signal is output, the power supply from the power supply to the lock control unit and the door lock device is started, and the lock control unit is caused to execute control of unlocking the door lock device. A power supply control system. According to the power supply control system of claim 1, until a first trigger signal is output in response to an operation from the outside of the vehicle, power supply to the lock control unit, the traveling operation unit, and the traveling control unit is not performed, and when the first trigger signal is output, power supply is started. Thereby, it is possible to reduce the power consumption when the operation is not necessary, and it is possible to improve the efficiency of power supply.

[0078] (2) When the switch detects an operation, the upper opening / closing control unit acquires a second trigger signal output by the operation unit. In a state where the upper opening / closing control unit stops power supply from the power source to the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit, while the second trigger signal is not output, the power source does not supply power to the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit. When the second trigger signal is output, the power supply from the power source to the first opening / closing control unit, the second opening / closing control unit, and the opening / closing unit is started. The power supply control system according to claim 1. According to the power supply control system of the second aspect, until the second trigger signal is output in response to the operation of the switch, power supply to the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit is not performed. Therefore, it is possible to reduce the power consumption when the first opening / closing unit, the second opening / closing unit, and the traveling operation unit do not need to operate, and it is possible to improve the efficiency of power supply.

[0079] (3) A plurality of travel control units configured as control units separate from the lock control unit, the first opening / closing control unit, and the second opening / closing control unit, for controlling the travel operation unit; a plurality of off-travel control units configured as control units separate from the lock control unit, the first opening / closing control unit, and the second opening / closing control unit, for controlling an off-travel operation unit which is an operation unit separate from the driving of the vehicle's power, the braking of the vehicle, and the steering of the vehicle; an occupant detection unit for detecting an occupant in the vehicle and outputting a third trigger signal; and an off-travel upper control unit for executing switching of the presence or absence of power supply from the vehicle's power source to the off-travel control unit. The off-travel upper control unit keeps the travel operation unit, the travel control unit, and the off-travel control unit in a state where no power is supplied from the power source while the third trigger signal is not output in a state where the power supply from the power source to the travel operation unit, the travel control unit, and the off-travel control unit is stopped, and starts the power supply from the power source to the travel operation unit, the travel control unit, and the off-travel control unit when the third trigger signal is output. The power supply control system according to Item 2. According to the power supply control system of Item 3, power supply to the travel operation unit, the travel control unit, and the off-travel control unit is not performed until an occupant of the vehicle is detected and a third trigger signal is output. Therefore, it is possible to reduce the power consumption when the travel operation unit and the off-travel operation unit do not need to operate, and improve the efficiency of power supply.

[0080] (Item 4) The lock upper control unit is disposed between the operation detection unit and the lock control unit, and the opening / closing upper control unit is disposed between the operation unit and the first opening / closing control unit and the second opening / closing control unit, and includes a central control unit located between the operation detection unit and the lock upper control unit and also between the operation unit and the opening / closing upper control unit. When the central control unit stops power supply to the lock control unit, the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit, while the first trigger signal and the second trigger signal are not output, the power from the power source is not supplied to the lock control unit, the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit. When the first trigger signal and the second trigger signal are output, the power supply from the power source to the lock control unit, the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit is started. The power supply control system according to Item 3. According to the power supply control system of Item 4, the power supply to the lock control unit, the first opening / closing control unit, the second opening / closing control unit, the traveling operation unit, and the traveling control unit is controlled by the central control unit. Thereby, the power consumption when the first opening / closing unit, the second opening / closing unit, and the traveling operation unit do not need to operate can be reduced, and the efficiency of power supply can be improved.

[0081] (Item 5) The power supply control system according to Item 4 includes a traveling upper control unit that executes switching of the presence or absence of power supply from the vehicle power source to the traveling control unit. The central control unit has functions of at least two alternative target control units selected from the lock upper control unit, the opening / closing upper control unit, and the non-traveling upper control unit, and executes switching of the presence or absence of power supply from the power source based on the first trigger signal, the second trigger signal, and the third trigger signal in place of the alternative target control unit. According to the power supply control system of Item 4, the power control based on the first trigger signal, the second trigger signal, and the third trigger signal is made redundant. Therefore, even if a failure occurs in the upper control unit, power supply can be performed as needed in the vehicle.

[0082] (Item 6) The power supply control system according to item 4 or 5, further comprising a running detection unit that outputs a fourth trigger signal indicating the running state of the vehicle, wherein when it is determined based on the fourth trigger signal that the vehicle is running, the central control unit stops the power supply from the power source to at least any one of the first opening / closing control unit, the second opening / closing control unit, the first opening / closing unit, and the second opening / closing unit. According to the power supply control system of item 6, the power supply to the first opening / closing unit and the second opening / closing unit is stopped during the running of the vehicle. Therefore, the power consumption when the opening / closing operations of the first opening / closing unit and the second opening / closing unit are unnecessary can be suppressed, and the efficiency of the power supply can be improved.

[0083] (Item 7) The power supply control system according to any one of items 4 to 6, further comprising an impact detection unit that detects an impact applied to the vehicle, wherein when the impact detection unit detects an impact, the central control unit supplies power from the power source to at least any one of the first opening / closing control unit, the second opening / closing control unit, the first opening / closing unit, and the second opening / closing unit. According to the power supply control system of item 7, when an impact to the vehicle is detected, the vehicle can be moved outside, so that the convenience of the occupant can be ensured while reducing the power consumption.

[0084] (Item 8) The power supply control system according to any one of items 4 to 7, wherein the central control unit stops the power supply from the power source to the operation detection unit in response to an operation of a second operation unit that is detected by a second switch, and stops the power supply from the power source to at least any one of the central control unit, the lock upper control unit, the opening / closing upper control unit, the off-vehicle upper ECU, and the running upper control unit. According to the power supply control system of item 8, when the vehicle is being transported or in other cases where the driving function and control function of the vehicle are unnecessary, the dark current can be further reduced.

[0085] (Item 9) The power supply control system according to any one of Items 4 to 8, comprising one ECU that executes the functions of the lock upper control unit and the opening / closing upper control unit. According to the power supply control system of Item 9, power supply can be controlled by a small number of control units, and the power supply in the vehicle can be made more efficient.

[0086] (Item 10) The power supply control system according to any one of Items 4 to 6, wherein the central control unit stops the power supply from the power source to at least part of the off - driving control unit and the off - driving operation unit while the cell motor provided in the internal combustion engine included in the vehicle is operating, and causes the power supply from the power source to the driving control unit and the driving operation unit. According to the power supply control system of Item 10, the power consumption of the off - driving control unit and the off - driving operation unit while the cell motor is operating is suppressed. As a result, the load on the power source at the time of starting the engine can be reduced. In addition, the success rate of starting the engine can be increased, and the engine can be started more smoothly.

[0087] (Item 11) A lock control unit that controls a door lock device for locking and unlocking a door for getting on and off a vehicle, a lock upper control unit that executes switching of power supply from the vehicle power source to the lock control unit and causes the lock control unit to control unlocking and locking of the door lock device, a first opening / closing control unit that is connected to a first opening / closing unit that drives an opening / closing unit including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the first opening / closing unit, a second opening / closing control unit that is connected to a second opening / closing unit that drives an opening / closing unit including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle and controls the second opening / closing unit, an opening / closing upper control unit that is connected to an operation unit that detects an operation by a switch and executes at least any one of an operation of switching power supply from the power source to the first opening / closing control unit, an operation of switching power supply from the power source to the second opening / closing control unit, an operation of causing the first opening / closing control unit to control the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing control unit to control the opening / closing operation of the second opening / closing unit based on the operation of the operation unit, and a running control unit that controls a running operation unit related to any one of driving of the vehicle power, braking of the vehicle, and steering of the vehicle. A power supply control method in which an operation detection unit acquires a first trigger signal output in response to an operation from outside the vehicle, and in a state where power supply from the power source to the lock control unit, the running operation unit, and the running control unit is stopped, power is not supplied from the power source to the lock control unit, the running operation unit, and the running control unit while the first trigger signal is not output, and when the first trigger signal is output, power supply from the power source to the lock control unit and the door lock device is started, and the lock control unit executes control to unlock the door lock device. According to the power supply control method of Item 11, power supply to the lock control unit, the running operation unit, and the running control unit is not performed until a first trigger signal is output in response to an operation from outside the vehicle, and power supply is started when the first trigger signal is output. Thereby, power consumption when operation is not necessary can be suppressed, and power supply efficiency can be improved.

Description of Symbols

[0088] 1…Vehicle control system (power supply control system), 11…Engine ECU (travel control unit), 12…Brake ECU (travel control unit), 13…Power steering ECU (travel control unit), 14…Door lock ECU (lock control unit), 15…Communication ECU, 16…Audio control ECU (non-travel control unit), 17…Air conditioner ECU (non-travel control unit), 18…Meter ECU (non-travel control unit), 19…Lighting control ECU, 20…Slide door opening / closing ECU (first opening / closing control unit), 21…Rear gate opening / closing ECU (second opening / closing control unit), 22…Entry detection ECU (operation detection unit), 23…Occupant detection ECU (occupant detection unit), 24…Vehicle speed detection ECU (vehicle speed detection unit), 25…Impact detection ECU (impact detection unit), 31…Fuel supply device (travel operation unit), 32…Cell motor (travel operation unit), 33…Brake device (travel operation unit), 34…Power steering device (travel operation unit), 35…Door lock device, 36…TSU, 37…Audio equipment, 38…Air conditioner, 39…Meter panel, 40…Lighting device, 41…Slide door opening / closing device (first opening / closing part), 42…Rear gate opening / closing device (second opening / closing part), 43…Wireless reception unit, 44…Touch sensor, 45…Camera, 46…Seating sensor, 47…Seat belt sensor, 48…Vehicle speed sensor, 49…G sensor, 51…Door operation part (operation part), 52…Ignition switch, 53…Current cut operation lever (second operation part), 61…Travel system ECU (travel control unit), 62…Normal operation control ECU, 63…Non-travel ECU (non-travel control unit), 71…Travel system device (travel operation unit), 72…Normal operation unit, 73…Non-travel device (non-travel operation unit), 100…Power supply control device, 101…Central ECU / Core ECU (central control unit), 111…Front upper ECU, 112…Central upper ECU (lock upper control unit, non-travel upper control unit, travel upper control unit), 113…Rear upper ECU (opening / closing upper control unit).

Claims

1. A lock ECU that controls a door lock device for locking the door for getting on and off the vehicle; A lock upper ECU that executes switching of the presence or absence of power supply from the vehicle power supply to the lock ECU and controls unlocking and locking of the door lock device by the lock ECU; A first opening / closing ECU that is connected to a first opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle, and controls the first opening / closing unit; A second opening / closing ECU that is connected to a second opening / closing unit that drives an opening / closing part including any one of the door for getting on and off, the door of the luggage compartment of the vehicle, and the window of the vehicle, and controls the second opening / closing unit; An opening / closing upper ECU that is connected to an operation unit that detects an operation by a switch and, based on the operation of the operation unit, executes at least any one of an operation of switching the presence or absence of power supply from the power supply to the first opening / closing ECU, an operation of switching the presence or absence of power supply from the power supply to the second opening / closing ECU, an operation of causing the first opening / closing ECU to control the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing ECU to control the opening / closing operation of the second opening / closing unit; A running ECU that controls a running system device related to any one of driving the power of the vehicle, braking the vehicle, and steering the vehicle; and is provided with, The lock upper ECU is connected to an entry detection ECU that detects an operation to get on the vehicle from the outside of the vehicle and outputs a first trigger signal, The lock upper ECU, In a state where the power supply from the power supply to the lock ECU, the running system device, and the running ECU is stopped, while the first trigger signal is not output, the lock ECU, the running system device, and the running ECU are in a state where no power is supplied from the power supply, When the first trigger signal is output, start the power supply from the power supply to the lock ECU and the door lock device, and cause the lock ECU to execute control to unlock the door lock device, The opening / closing upper ECU acquires a second trigger signal output by the operation unit when the switch detects an operation, The opening / closing upper ECU, In a state where power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, the traveling system device, and the traveling ECU is stopped, while the second trigger signal is not output, the first opening / closing ECU, the second opening / closing ECU, the traveling system device, and the traveling ECU are in a state where power is not supplied from the power source. A power supply control system that starts power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, and the opening / closing unit when the second trigger signal is output. **Claim 2** Configured as an ECU different from the lock ECU, the first opening / closing ECU, and the second opening / closing ECU, a plurality of the traveling ECUs that control the traveling system device, Configured as an ECU different from the lock ECU, the first opening / closing ECU, and the second opening / closing ECU, a plurality of off-travel ECUs that control an off-travel device which is an operation unit different from driving of the vehicle's power, braking of the vehicle, and steering of the vehicle. An occupant detection unit that detects an occupant in the vehicle interior and outputs a third trigger signal. An off-travel upper ECU that executes switching of presence or absence of power supply from the vehicle's power source to the off-travel ECU, and The off-travel upper ECU is In a state where power supply from the power source to the traveling system device, the traveling ECU, and the off-travel ECU is stopped, while the third trigger signal is not output, the traveling system device, the traveling ECU, and the off-travel ECU are in a state where power is not supplied from the power source. The power supply control system according to claim 1, which starts power supply from the power source to the off-travel ECU when the third trigger signal is output. **Claim 3** The lock upper ECU is disposed between the entry detection ECU and the lock ECU. The opening / closing upper ECU is disposed between the operation unit and the first opening / closing ECU and the second opening / closing ECU. Comprising a central ECU that is located between the entry detection ECU and the lock upper ECU and is also located between the operation unit and the opening / closing upper ECU. The central ECU is In a state where power supply to the lock ECU, the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU is stopped, while the first trigger signal and the second trigger signal are not output, the lock ECU, the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU are in a state where power is not supplied from the power source. When the first trigger signal and the second trigger signal are output, power supply from the power source to the lock ECU, the first opening / closing ECU, and the second opening / closing ECU is started. The power supply control system according to claim 2.

4. It includes a running upper ECU that executes switching of the presence or absence of power supply from the vehicle's power source to the running ECU. The central ECU has the functions of at least two alternative target ECUs selected from the lock upper ECU, the opening / closing upper ECU, the non-running upper ECU, and the running upper ECU. Instead of the alternative target ECU, switching of the presence or absence of power supply from the power source is executed based on the first trigger signal, the second trigger signal, and the third trigger signal. The power supply control system according to claim 3.

5. It includes a running detection unit that outputs a fourth trigger signal indicating the running state of the vehicle. The central ECU When it is determined that the vehicle is running based on the fourth trigger signal, the power supply from the power source to at least any one of the first opening / closing ECU, the second opening / closing ECU, the first opening / closing unit, and the second opening / closing unit is not performed. The power supply control system according to claim 3 or 4.

6. It includes an impact detection unit that detects an impact applied to the vehicle. The central ECU When the impact detection unit detects an impact, the power supply from the power source to at least any one of the first opening / closing ECU, the second opening / closing ECU, the first opening / closing unit, and the second opening / closing unit is in a state where power is supplied. The power supply control system according to any one of claims 3 to 5.

7. The central ECU, in response to an operation of a second operation unit that detects an operation by a second switch, sets a state in which power is not supplied from the power source to the entry detection ECU, and sets a state in which power is not supplied from the power source to at least any one of the central ECU, the lock upper ECU, the opening / closing upper ECU, and the out-of-travel upper ECU. The power supply control system according to any one of claims 3 to 6.

8. The power supply control system according to any one of claims 3 to 7, comprising one ECU that executes the functions of the lock upper ECU and the opening / closing upper ECU.

9. The central ECU is While a cell motor provided in an internal combustion engine included in the vehicle is operating, stops power supply from the power source to at least a part of the out-of-travel ECU and the out-of-travel device, and supplies power from the power source to the travel ECU and the travel system device. The power supply control system according to any one of claims 3 to 5.

10. A lock ECU that controls a door lock device for locking a door for getting on and off a vehicle, A lock upper ECU that executes switching of the presence or absence of power supply from the vehicle power source to the lock ECU, and causes the lock ECU to control unlocking and locking of the door lock device, A first opening / closing ECU that is connected to a first opening / closing unit that drives an opening / closing part including any one of the door for getting on and off the vehicle, the door of the luggage compartment of the vehicle, and the window of the vehicle, and controls the first opening / closing unit, A second opening / closing ECU that is connected to a second opening / closing unit that drives an opening / closing part including any one of the door for getting on and off the vehicle, the door of the luggage compartment of the vehicle, and the window of the vehicle, and controls the second opening / closing unit, An opening / closing upper ECU that is connected to an operation unit that detects an operation by a switch, and based on the operation of the operation unit, executes at least any one of an operation of switching the presence or absence of power supply from the power source to the first opening / closing ECU, an operation of switching the presence or absence of power supply from the power source to the second opening / closing ECU, an operation of causing the first opening / closing ECU to control the opening / closing operation of the first opening / closing unit, and an operation of causing the second opening / closing ECU to control the opening / closing operation of the second opening / closing unit, A power supply control system including a travel ECU that controls a travel system device related to any one of driving of the vehicle's power, braking of the vehicle, and steering of the vehicle. Obtain a first trigger signal output by the entry detection ECU in response to an operation to attempt to board the vehicle from outside the vehicle; In a state where the power supply from the power source to the lock ECU, the running system device, and the running ECU is stopped, while the first trigger signal is not output, the lock ECU, the running system device, and the running ECU are in a state where no power is supplied from the power source; When the first trigger signal is output, start the power supply from the power source to the lock ECU and the door lock device, and the lock ECU executes control to unlock the door lock device; Obtain a second trigger signal output by the operation unit when the switch detects an operation; In a state where the power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU is stopped, while the second trigger signal is not output, the first opening / closing ECU, the second opening / closing ECU, the running system device, and the running ECU are in a state where no power is supplied from the power source; When the second trigger signal is output, the opening / closing upper ECU executes control to start the power supply from the power source to the first opening / closing ECU, the second opening / closing ECU, and the opening / closing unit. A power supply control method.

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