Vehicle

Abstract

The invention provides a vehicle which can restrain the action of non-immersed equipment from being influenced by the short circuit of immersed equipment. The vehicle includes: a power source; a plurality of devices that operate by receiving power supply from the power source; and a control device that controls the supply of power to each device by controlling the opening or closing of each switch for each circuit that supplies power from a power source to each device. The vehicle is provided with: a first immersion sensor disposed in a first region, which is a partial region of the vehicle; and a second immersion sensor disposed in a second region that does not overlap the first region. In the vehicle, when either the first immersion sensor or the second immersion sensor detects immersion (S120: "No", S150: "YES"), the control device turns on a circuit for supplying power from the power source to a device disposed in a region where the immersion sensor that has detected immersion is disposed, and cuts off the supply of power to the device (S140, S160).

Description

TECHNICAL FIELD

[0001] The present application relates to a vehicle. BACKGROUND

[0002] In Japanese Patent Document 1, an escape device is disclosed, in which a passenger can escape from a window by lowering a window glass of a door when a vehicle is flooded.

[0003] A window glass of a vehicle is opened or closed by a window operation motor, which is supplied with electric power from a battery mounted on the vehicle. The escape device is provided with an emergency window glass opening circuit.

[0004] In a case where a flooding sensor provided on a door main body of the vehicle detects flooding, the escape device receives a supply of electric power from a charge-discharge mechanism provided on the door main body separately from the battery and automatically opens the window glass of the door. At this time, electric power is continuously supplied to devices mounted on the entire flooded vehicle, including the door main body in which flooding is detected.

[0005] Patent Document 1: Japanese Patent Application Publication No. 2000-034860 SUMMARY

[0006] In a case where a device mounted on a vehicle is flooded, a circuit of the flooded device is short-circuited. Therefore, since the flooded device receives a supply of electric power from the same battery, a supply of electric power to other electronic devices that are not flooded becomes unstable. As a result, the operation of these devices becomes unstable.

[0007] A vehicle for solving the above problem is provided with: a power supply; a plurality of devices that operate by receiving a supply of electric power from the power supply; and a control device that controls a supply of electric power to each device by controlling each switch that opens or closes each circuit that supplies electric power to each device from the power supply. The vehicle is provided with: a first flooding sensor provided in a first region that is a part of the vehicle; and a second flooding sensor provided in a second region that is a part of the vehicle and does not overlap the first region. In the vehicle, when either of the first flooding sensor and the second flooding sensor detects flooding, the control device opens a circuit that supplies electric power to a device from the power supply to cut off a supply of electric power to the device, which is provided in the region in which the flooding sensor that detected flooding is provided.

[0008] EFFECT OF THE INVENTION

[0009] According to the above vehicle, it is possible to suppress an influence on the operation of a device that is not flooded due to a short-circuit of a circuit of a flooded device. BRIEF DESCRIPTION OF DRAWINGS

[0010] Figure 1is a view showing positions of devices provided in the vehicle of the first embodiment in the vehicle front-rear direction.

[0011] Figure 2 is a view showing positions of devices provided in the vehicle of the first embodiment in the vehicle front-rear direction and in the vehicle left-right direction.

[0012] Figure 3 is a circuit diagram showing states of each semiconductor switch when the first water immersion sensor is water immersed in the vehicle of the first embodiment.

[0013] Figure 4 is a flowchart showing a processing flow executed by the microcomputer in the vehicle of the first embodiment.

[0014] Figure 5 is a flowchart showing a processing flow when the microcomputer restarts supply of electric power to the device that causes the door to operate in the vehicle of the modification example. DETAILED DESCRIPTION

[0015] <First Embodiment>

[0016] Hereinafter, with reference to Figures 1-4 The first embodiment of the vehicle will be described.

[0017] <Configuration of Vehicle 10>

[0018] Figure 1 and Figure 2 show the configuration of the vehicle 10. Figure 1 is a side view of the vehicle 10 as viewed from the left side of the vehicle 10. Figure 2 is a plan view of the vehicle 10 as viewed from above the vehicle 10. As Figure 2 indicated by an arrow of

[0019] As shown in Figure 2 , the vehicle 10 is provided with four doors 31, i.e., a left front door 31C, a left rear sliding door 31D, a right front door 31A, and a right rear sliding door 31B. Figure 1 The left front door 31C and the left rear sliding door 31D, which are provided on the left side surface of the vehicle 10, of the four doors 31 are illustrated in Figure 2 As shown in , the right front door 31A and the right rear sliding door 31B, which are among the four doors 31, are provided on the right side surface of the vehicle 10. The right rear sliding door 31B and the left rear sliding door 31D are doors 31 that are opened or closed by sliding the door in the front-rear direction of the vehicle 10.

[0020] Figure 1As shown, the four doors 31 are each provided with a power window device 32, a door lock mechanism 33, and a door ECU 54. The power window device 32 causes the window of the door 31 to perform opening or closing action. The door lock mechanism 33 performs locking and unlocking of the door lock of the door 31. The door ECU 54 controls the actions of the power window device 32 and the door lock mechanism 33.

[0021] As shown in Figure 1 and Figure 2 shown, the vehicle 10 is equipped with a battery 40 as a power source of the vehicle 10 and a plurality of devices that act by receiving supply of electric power from the battery 40. The four doors 31 are also devices that act by receiving supply of electric power from the battery 40. Figure 1 The positions of the respective devices equipped in the vehicle 10 in the vehicle front-rear direction are shown in Figure 2 In, in addition to the positions of the respective devices equipped in the vehicle 10 in the vehicle front-rear direction, the positions in the vehicle left-right direction are also shown.

[0022] The vehicle 10 is Figure 1 and Figure 2 divided into a first region on the vehicle front side and a second region on the vehicle rear side by a region division line A shown by a broken line in. Figure 2 A center line B passing through the center in the vehicle width direction is shown by a single-dot chain line in.

[0023] As shown in Figure 1 In the first region on the vehicle front side, the hybrid mechanism 20, an engine electronic control unit (ECU) 51, a power control unit (PCU) 52, the steering mechanism 25, and a steering ECU 53 among the above-described plurality of devices are disposed.

[0024] As shown in Figure 2 The hybrid mechanism 20 is provided with an engine 21, a power distribution mechanism 22, and two motor generators 23. The two motor generators 23 are a first motor generator 23A and a second motor generator 23B.

[0025] The power distribution mechanism 22 is located more to the vehicle left side than the engine 21. The two motor generators 23 are located more to the vehicle left side than the power distribution mechanism 22.

[0026] The engine ECU 51 controls the engine 21. The PCU 52 controls the first motor generator 23A and the second motor generator 23B. The hybrid mechanism 20 integrates and converts the output of the engine 21 and the outputs of the motor generators 23 through the power distribution mechanism 22, thereby generating driving force for running the vehicle 10.

[0027] The steering mechanism 25 changes the steering angle of the front wheels that are the steering wheels of the vehicle 10. The steering ECU 53 controls the steering mechanism 25 to change the steering wheels to an appropriate steering angle in accordance with the steering angle of the vehicle 10.

[0028] As shown in Figure 2 , the right front door 31A and the left front door 31C are provided in the first region on the front side of the vehicle.

[0029] As shown in Figure 1 , the transmission drive axle 41 and the inverter 42, which are among the above-described plurality of devices, are provided in the second region on the rear side of the vehicle. The transmission drive axle 41 is an electric drive unit that drives the rear wheels of the vehicle 10 by an electric motor. The inverter 42 controls the output of the above-described electric motor by adjusting the electric power supplied to the electric motor of the transmission drive axle 41. As shown in Figure 1 , the battery 40 and the power control ECU 90 are also provided in the second region on the rear side of the vehicle. The power control ECU 90 is provided above the battery 40. The power control ECU 90 controls the supply of electric power from the battery 40 to each of the devices. The battery 40 is connected to each of the above-described devices via a circuit inside the power control ECU 90. In Figure 1 and Figure 2 , the wiring that connects the battery 40 and the power control ECU 90 and the wiring that connects the power control ECU 90 and each of the devices are not shown.

[0030] As shown in Figure 1 and Figure 2 , the transmission drive axle 41 is provided further forward in the vehicle than the inverter 42. The battery 40 and the power control ECU 90 are provided further forward in the vehicle than the transmission drive axle 41.

[0031] <Configuration of the Power Control ECU 90>

[0032] Figure 3 The configuration of the power control ECU 90 is shown. The power control ECU 90 is provided with a water immersion detection circuit 91 and a microcomputer 92. In the power control ECU 90, the microcomputer 92 functions as a control device that controls the supply of electric power to each of the devices.

[0033] The microcomputer 92 is connected to the first water immersion sensor 71 and the second water immersion sensor 72 via the water immersion detection circuit 91. As the first water immersion sensor 71 and the second water immersion sensor 72, for example, a conductive sensor that causes an electrolyte that is conductive due to water immersion of the sensor to be eluted into water, thereby generating an electric current between electrodes inside the sensor can be used. The water immersion detection circuit 91 is a circuit that generates an electromotive force corresponding to the water immersion sensor that is water immersed when either of the first water immersion sensor 71 and the second water immersion sensor 72 is water immersed. The microcomputer 92 determines which water immersion sensor is water immersed by detecting the electromotive force generated in the water immersion detection circuit 91.

[0034] like Figure 1 and Figure 2 As shown, the first water immersion sensor 71 is located further forward of the vehicle than the hybrid power unit 20. That is, the first water immersion sensor 71 is located in a first region on the front side of the vehicle. The second water immersion sensor 72 is located further rearward of the vehicle than the inverter 42. That is, the second water immersion sensor 72 is located in a second region on the rear side of the vehicle.

[0035] The power control ECU 90 has 12 semiconductor switches 93. Each semiconductor switch 93 is a switch that uses electronic components such as transistors and transmits electrical signals to turn a circuit on or off. The 12 semiconductor switches 93 are... Figure 3 The semiconductor switches shown are 93A to 93L.

[0036] like Figure 3 As shown, semiconductor switch 93A is a switch that opens or closes the circuit connecting battery 40 and right front door 31A. Semiconductor switch 93B is a switch that opens or closes the circuit connecting battery 40 and right rear sliding door 31B. Semiconductor switch 93C is a switch that opens or closes the circuit connecting battery 40 and left front door 31C. Semiconductor switch 93D is a switch that opens or closes the circuit connecting battery 40 and left rear sliding door 31D.

[0037] Semiconductor switch 93E is a switch that turns the circuit connecting battery 40 and engine 21 on or off. Semiconductor switch 93F is a switch that turns the circuit connecting battery 40 and electric generator 23 on or off. Semiconductor switch 93G is a switch that turns the circuit connecting battery 40 and engine ECU 51 on or off. Semiconductor switch 93H is a switch that turns the circuit connecting battery 40 and PCU 52 on or off.

[0038] Semiconductor switch 93I is a switch that turns the circuit connecting battery 40 and steering mechanism 25 on or off. Semiconductor switch 93J is a switch that turns the circuit connecting battery 40 and steering ECU 53 on or off. Semiconductor switch 93K is a switch that turns the circuit connecting battery 40 and transmission drive axle 41 on or off. Semiconductor switch 93L is a switch that turns the circuit connecting battery 40 and inverter 42 on or off.

[0039] When semiconductor switch 93 is turned on, the circuit is in the closed state. When semiconductor switch 93 is turned off, the circuit is in the open state. Microcomputer 92 individually controls these semiconductor switches 93 to control the power supply to the aforementioned devices. When semiconductor switch 93 is turned on, the circuit is closed, and power is supplied to the devices connected to battery 40 via power control ECU 90. When semiconductor switch 93 is turned off, the circuit is open, and the power supply to the devices connected to battery 40 via power control ECU 90 is cut off.

[0040] <Control performed by the power control ECU90>

[0041] Figure 4 It is a flowchart representing the processing flow executed by the microcomputer 92.

[0042] When vehicle 10 starts running, microcomputer 92 activates all 12 semiconductor switches 93 to supply power to various devices starting from battery 40. During vehicle 10 operation, microcomputer 92 executes commands at predetermined time intervals. Figure 4 The series of processes shown.

[0043] If start Figure 4 The series of processes shown in the figure are as follows: in step S110, the microcomputer 92 determines whether the first immersion sensor 71 is immersed in water. When the microcomputer 92 determines in step S110 that the first immersion sensor 71 is not immersed in water (step S110: "No"), the process proceeds to step S150.

[0044] In step S150, the microcomputer 92 determines whether the second immersion sensor 72 is submerged in water. When the microcomputer 92 determines in step S150 that the second immersion sensor 72 is not submerged in water (step S150: "No"), the process proceeds to step S170. In this case, no area of ​​the vehicle 10 is submerged in water. Therefore, in step S170, the microcomputer 92 keeps the circuits supplying power from the battery 40 to the aforementioned devices mounted on the vehicle 10 closed. Thus, the microcomputer 92 continues to supply power to all of the aforementioned devices.

[0045] On the other hand, when the microcomputer 92 determines in step S150 that the second immersion sensor 72 is submerged in water (step S150: "Yes"), the process proceeds to step S160. In this case, the second area of ​​the vehicle 10 is submerged in water, while the first area is not. Therefore, in step S160, the microcomputer 92 turns off the semiconductor switch 93 in the circuit that connects the devices disposed in the second area of ​​the vehicle 10 to the battery 40, thereby turning on the circuit. As a result, the microcomputer 92 cuts off the power supply to the aforementioned devices disposed in the second area.

[0046] When the microcomputer 92 determines in step S110 that the first immersion sensor 71 is immersed in water (step S110: "Yes"), the process proceeds to step S120.

[0047] In step S120, the microcomputer 92 determines whether the second immersion sensor 72 is submerged in water. When the microcomputer 92 determines that the second immersion sensor 72 is not submerged in water (step S120: "No"), the process proceeds to step S140. In this case, the first area of ​​the vehicle 10 is submerged in water, while the second area is not submerged. Therefore, in step S140, the microcomputer 92 turns off the semiconductor switch 93 in the circuit that connects the devices disposed in the first area of ​​the vehicle 10 to the battery 40, thereby turning on the circuit. As a result, the microcomputer 92 cuts off the power supply to the aforementioned devices disposed in the first area.

[0048] When the microcomputer 92 determines in step S120 that the second immersion sensor 72 is submerged in water (step S120: "Yes"), the process proceeds to step S130. In this case, both the first and second regions of the vehicle 10 are submerged in water. Therefore, in step S130, the microcomputer 92 cuts off the power supply to the devices provided in the first region and the devices provided in the second region, except for the door 31. That is, the microcomputer 92 turns off the semiconductor switch 93 in the circuit connecting the battery 40 and the devices of the vehicle 10 other than the door 31, thereby turning on the circuit. As a result, the microcomputer 92 cuts off the power supply to the devices other than the door 31.

[0049] If the microcomputer 92 executes any of the processes in steps S130, S140, S160 and S170, the above series of processes will be temporarily terminated.

[0050] <Function of the first embodiment>

[0051] Vehicle 10 stops supplying power to equipment located in areas detected as flooded by a water immersion sensor. Therefore, vehicle 10 can prevent short circuits in the flooded equipment by continuing to supply power to it. This prevents instability in the power supply to other equipment due to a short circuit in one part of the power supply destination.

[0052] When vehicle 10 detects that the first water immersion sensor 71 located in the first area at the front of the vehicle is submerged in water (step S120: "No"), it cuts off the power supply to the device located in the first area (step S140). Therefore, even when the first area is submerged in water, vehicle 10 continues to supply power to the device located in the second area at the rear of the vehicle.

[0053] Figure 3This indicates the state of the electrical control ECU 90 circuit when the first area on the front side of vehicle 10 is submerged in water. Specifically, it indicates the state where the microcomputer 92, upon detecting water immersion in the first water sensor 71, opens the circuit supplying power from the battery 40 to the devices located in the first area and cuts off the power supply to the corresponding devices. The devices located in the first area correspond to the right front door 31A, left front door 31C, engine 21, electric generator 23, engine ECU 51, PCU 52, steering mechanism 25, and steering ECU 53. Therefore, the microcomputer 92 opens the semiconductor switches 93 provided in the circuit connecting the battery 40 to these devices. That is, the microcomputer 92 cuts off the power supply from the battery 40 to these devices. Specifically, the microcomputer 92 opens semiconductor switches 93A, 93C, 93E, 93F, 93G, 93H, 93I, and 93J respectively. Thus, the microcomputer 92 cuts off the power supply to the devices located in the first area on the front side of the vehicle. On the other hand, the microcomputer 92 continues to supply power to the transmission drive axle 41 and inverter 42 located in the second area at the rear of the vehicle.

[0054] When vehicle 10 detects that the second water immersion sensor 72 located in the second area at the rear of the vehicle is submerged in water (step S150: "Yes"), the power supply to the device located in the second area is cut off (step S160). Therefore, even when the second area at the rear of the vehicle is submerged in water, vehicle 10 continues to supply power to the device located in the first area at the front of the vehicle.

[0055] The devices located in the second area correspond to the right rear sliding door 31B, the left rear sliding door 31D, the transmission drive axle 41, and the inverter 42. Therefore, the microcomputer 92 activates the semiconductor switches 93 provided in the circuits connecting the battery 40 to these devices. That is, the microcomputer 92 cuts off the power supply from the battery 40 to these devices. Specifically, the microcomputer 92 activates semiconductor switches 93B, 93D, 93K, and 93L respectively. Thus, the microcomputer 92 cuts off the power supply to the devices located in the second area at the rear of the vehicle. On the other hand, the microcomputer 92 continues to supply power to the right front door 31A, left front door 31C, engine 21, electric generator 23, engine ECU 51, PCU 52, steering mechanism 25, and steering ECU 53 located in the first area at the front of the vehicle.

[0056] <Effects of the first embodiment>

[0057] (1-1) According to vehicle 10, it is possible to suppress the operation of non-submerged equipment due to short circuit of submerged equipment.

[0058] (1-2) The first region of vehicle 10 is the region on the front side of vehicle when vehicle 10 is divided into two regions: the region on the front side of vehicle and the region on the rear side of vehicle. The second region of vehicle 10 is the region on the rear side of vehicle.

[0059] According to vehicle 10, when either the first area on the front side of the vehicle or the second area on the rear side of the vehicle is submerged in water, it is possible to suppress the operation of equipment installed in the other unsubmerged area from being affected.

[0060] (1-3) Among the various devices of the vehicle 10 is a device that actuates the door 31 of the vehicle 10.

[0061] Vehicle 10 stops supplying power to the equipment located in the flooded area, but continues to supply power to the equipment that causes the door 31 located in the unflooded area.

[0062] According to vehicle 10, when vehicle 10 is submerged in water, the operation of the device that can suppress the operation of the door 31 of vehicle 10 located in the unsubmerged area is affected.

[0063] <Second Implementation>

[0064] In the vehicle 10 of the second embodiment, the positions of the first water immersion sensor 71 and the second water immersion sensor 72 are different from those in the vehicle 10 of the first embodiment. The configuration and position of the various devices mounted in the vehicle 10 of the second embodiment are the same as those in the vehicle 10 of the first embodiment. The configuration of the power control ECU 90 is also the same as that in the vehicle 10 of the first embodiment.

[0065] The vehicle 10 in the second embodiment was Figure 2 The center line B, represented by a single-dot dash, is divided into two areas: the first area on the right side of the vehicle and the second area on the left side of the vehicle.

[0066] like Figure 2 As shown, the first water immersion sensor 71 is located near the center of the vehicle in the longitudinal direction, near the right front door 31A and the right rear sliding door 31B. That is, the first water immersion sensor 71 is located in a first region further to the right of the vehicle than the center line B. The second water immersion sensor 72 is located near the center of the vehicle in the longitudinal direction, near the left front door 31C and the left rear sliding door 31D. That is, the second water immersion sensor 72 is located in a second region further to the left of the vehicle than the center line B.

[0067] like Figure 2As shown, an engine 21, an engine ECU 51, a steering ECU 53, a right front door 31A, and a right rear sliding door 31B are located in the first region on the right side of vehicle 10. A power distribution mechanism 22, an electric generator 23, a PCU 52, a left front door 31C, and a left rear sliding door 31D are located in the second region on the left side of vehicle 10. A steering mechanism 25, a transmission drive axle 41, and an inverter 42 are installed spanning both the first region on the right side and the second region on the left side of vehicle 10.

[0068] <Control performed by the power control ECU90>

[0069] The power control ECU90 performs the same operation as in the first embodiment. Figure 4 The flowchart illustrates a series of processes.

[0070] <Function of the second implementation method>

[0071] Vehicle 10 stops supplying power to equipment located in areas detected as flooded by a water immersion sensor. Therefore, vehicle 10 can prevent short circuits in the flooded equipment by continuing to supply power to it. This prevents instability in the power supply to other equipment due to a short circuit in one part of the power supply destination.

[0072] When vehicle 10 detects that the first immersion sensor 71 located in the first area on the right side of the vehicle is submerged in water (step S120: "No"), it cuts off the power supply to the device located in the first area on the right side of the vehicle (step S140). Therefore, even when the first area is submerged in water, vehicle 10 continues to supply power to the device located in the second area on the left side of the vehicle.

[0073] The devices located in the first area correspond to the engine 21, engine ECU 51, steering ECU 53, right front door 31A, right rear sliding door 31B, steering mechanism 25, transmission drive axle 41, and inverter 42. Therefore, the microcomputer 92 activates the semiconductor switches 93 provided in the circuits connecting the battery 40 to these devices. That is, the microcomputer 92 cuts off the power supply from the battery 40 to these devices. Specifically, the microcomputer 92 activates semiconductor switches 93E, 93G, 93J, 93A, 93B, 93I, 93K, and 93L. Thus, the microcomputer 92 cuts off the power supply to the devices located in the first area on the right side of the vehicle. On the other hand, the microcomputer 92 continues to supply power to the electric generator 23, PCU 52, left front door 31C, and left rear sliding door 31D located in the second area on the left side of the vehicle.

[0074] When vehicle 10 detects that the second immersion sensor 72 located in the second area on the left side of the vehicle is submerged in water (step S150: "Yes"), it cuts off the power supply to the device located in the second area (step S160). Therefore, even when the second area on the left side of the vehicle is submerged in water, vehicle 10 continues to supply power to the device located in the first area on the right side of the vehicle.

[0075] The devices located in the second region correspond to the power distribution mechanism 22, electric generator 23, PCU 52, left front door 31C, left rear sliding door 31D, steering mechanism 25, transmission drive axle 41, and inverter 42. Therefore, the microcomputer 92 turns on the semiconductor switch 93 located in the circuit connecting the battery 40 to these devices. That is, the microcomputer 92 cuts off the power supply from the battery 40 to these devices. Furthermore, the power distribution mechanism 22 is a device that does not require power from the battery 40 and is not connected to the battery 40. Therefore, the microcomputer 92 turns on semiconductor switches 93F, 93H, 93C, 93D, 93I, 93K, and 93L. Thus, the microcomputer 92 cuts off the power supply to the devices located in the second region on the left side of the vehicle. On the other hand, the microcomputer 92 continues to supply power to the engine 21, engine ECU 51, steering ECU 53, right front door 31A, and right rear sliding door 31B located in the first region on the right side of the vehicle.

[0076] <Effects of the second implementation method>

[0077] In addition to the effects of the first embodiment (1-1) and (1-3), the second embodiment also has the following effects.

[0078] (2-1) The first region of vehicle 10 is the right side region of vehicle 10 when vehicle 10 is divided into two regions: the right side region of vehicle 10 and the left side region of vehicle 10. The second region of vehicle 10 is the left side region of vehicle 10.

[0079] According to vehicle 10, when either the first area on the right side of the vehicle or the second area on the left side of the vehicle is submerged in water, it is possible to suppress the operation of equipment installed in the other unsubmerged area from being affected.

[0080] <Example of Change>

[0081] As required for modifications that can be made together with the above-described embodiments, the following are the modifications.

[0082] For example, they can be combined and implemented within a technically compatible range.

[0083] • In step S130, the microcomputer 92 cuts off the power supply to devices other than the door 31 of the vehicle 10. In step S130, the microcomputer 92 can cut off the power supply to all devices, including the door 31 of the vehicle 10.

[0084] • After the power supply to the device that actuates the door 31 is cut off, the power supply to the device can be restarted if the door 31 is opened.

[0085] This control can be performed, for example, by a microcomputer 92 after the power supply to the device that actuates door 31 is cut off. Figure 5 This is achieved through a series of processes, as shown.

[0086] like Figure 5 As shown, in step S210, the microcomputer 92 determines whether an opening operation has been performed on the door 31, whose power supply has been cut off. An opening operation, for example, refers to the operation of opening a window of the door 31 by operating the electric window device 32 provided on the door 31. An opening operation, for example, refers to the operation of unlocking the door lock of the door 31 by operating the door lock mechanism 33 provided on the door 31.

[0087] When the microcomputer 92 determines that the door 31, whose power supply has been cut off, was opened in step S210 (step S210: "Yes"), the process proceeds to step S220.

[0088] If the microcomputer 92 determines that the door 31, whose power supply has been cut off, was not opened in step S210 (step S210: "No"), the process of step S210 is repeated.

[0089] In step S220, the microcomputer 92 resumes supplying power to the door 31 that has been opened. The microcomputer 92 shuts off the circuit from the battery 40 that supplies power to the device that caused the door 31 to open, and resumes supplying power to the device. While the microcomputer 92 is executing step S220, the aforementioned series of processes concludes.

[0090] If this configuration is adopted, when the vehicle 10 cuts off the power supply to the device that actuates the door 31 and then performs an opening operation on the door 31, the microcomputer 92 shuts down the circuit that supplies power from the battery 40 to the device that actuates the door 31 and restarts the power supply to the device.

[0091] In response to a user's operation to open the door 31, the vehicle 10 resumes power supply to the door 31, wherein power supply to the device that actuates the door 31 has been cut off. Thus, the door 31 opens according to the user's operation.

[0092] According to this vehicle 10, when the vehicle 10 is submerged in water, the user can easily escape from the vehicle 10.

[0093] The vehicle 10 is divided into two regions by either region dividing line A or center line B. However, the regions of the vehicle 10 are not limited to the two-region division described above. The vehicle 10 can be divided into three or more regions. For example, it can be divided into three regions: the region on the front side of the vehicle, the region on the rear side of the vehicle, and the region in the center of the vehicle located between the region on the front side and the region on the rear side.

[0094] The number of water immersion sensors installed in vehicle 10 is not limited to two. For example, if the area is divided into three regions as described in the above modification, one water immersion sensor can be installed in each of the three regions. On the other hand, in the above modification, the central region of the vehicle can be designated as a region without water immersion sensors, with water immersion sensors installed only in the remaining two regions. That is, a portion of vehicle 10 may not have water immersion sensors, but at least two regions of vehicle 10 need to have water immersion sensors.

[0095] The number of water immersion sensors installed in each area of ​​the vehicle 10 is not limited to one per area. Multiple water immersion sensors can be installed in one area of ​​the vehicle 10. For example, it can be configured such that when any one of the multiple water immersion sensors installed in the area is submerged, the power supply to each device installed in that area is cut off. For example, it can be configured such that when a predetermined number or more of the multiple water immersion sensors installed in the area are submerged, the power supply to each device installed in that area is cut off.

[0096] Symbol Explanation

[0097] 10-Vehicle, 21-Engine, 22-Power distribution mechanism, 23-Electric generator, 25-Steering mechanism, 31-Door, 32-Electric window device, 33-Door lock mechanism, 40-Battery, 41-Transmission drive axle, 42-Inverter, 51-Engine ECU, 52-PCU, 53-Steering ECU, 54-Door ECU, 71-First immersion sensor, 72-Second immersion sensor, 90-Electric control ECU, 91-Immersion detection circuit, 92-Microcomputer, 93-Semiconductor switch.

Claims

1. A vehicle characterized by comprising: Possessing: a power supply; a plurality of devices that act by receiving a power supply from the power supply; a control device that controls the power supply to each device by controlling each switch that opens or closes each circuit that supplies power from the power supply to each device; a first water immersion sensor that is provided in a first region that is a part of the vehicle; a second water immersion sensor that is provided in a second region that is a part of the vehicle and does not overlap with the first region, when either of the first water immersion sensor and the second water immersion sensor detects water immersion, the control device opens the circuit that supplies power from the power supply to the device that is provided in the region in which the water immersion sensor that detected water immersion is provided, and cuts off the power supply to the device.

2. The vehicle according to claim 1, characterized in that the first region is a region on the front side of the vehicle when the vehicle is divided into two regions on the front side and on the rear side of the vehicle, the second region is a region on the rear side of the vehicle.

3. The vehicle according to claim 1, characterized in that the first region is a region on the right side of the vehicle when the vehicle is divided into two regions on the right side and on the left side of the vehicle, the second region is a region on the left side of the vehicle.

4. The vehicle according to any one of claims 1 to 3, characterized in that the plurality of devices includes a device that causes a door of the vehicle to act.

5. The vehicle according to claim 4, characterized in that in the case where the door is operated to be opened after the power supply to the device that causes the door to act has been cut off, the control device closes the circuit that supplies power from the power supply to the device that causes the door to act, and resumes the power supply to the device.

Images