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JP-7856455-B2 - vehicle

JP7856455B2JP 7856455 B2JP7856455 B2JP 7856455B2JP-7856455-B2

Inventors

  • 片寄 友貴
  • 北川 太洋

Assignees

  • 株式会社SUBARU

Dates

Publication Date
20260511
Application Date
20220322

Claims (6)

  1. An electrical unit connected to the battery and motor, An inflator that generates gas when a vehicle collides, An airbag is provided between the electrical unit and the vehicle frame, which deploys when the vehicle collides using gas generated from the inflator , A cutting mechanism that, in the event of a collision between the vehicle and the electrical unit, cuts the power line connecting the battery and the electrical unit. Equipped with , The cutting mechanism cuts the power line using the gas pressure generated from the inflator. vehicle.
  2. The electrical unit comprises an inverter and a capacitor connected in parallel with the inverter to the battery. The vehicle according to claim 1 , wherein the airbag deploys using electricity stored in the capacitor when the vehicle collides.
  3. Multiple airbags are provided. The vehicle according to claim 1 or claim 2 , further comprising a control unit that detects the collision direction of the vehicle and deploys the airbag based on the detected collision direction.
  4. The aforementioned electrical unit is fixed in the engine compartment on the front side of the vehicle, above the engine. The vehicle according to any one of claims 1 to 3 , wherein the airbag is provided behind the electrical unit.
  5. The aforementioned airbags are arranged in a row in the vehicle width direction, rearward from the electrical unit. The vehicle according to claim 3.
  6. An intercooler is positioned above the aforementioned electrical unit. The vehicle according to claim 1.

Description

This invention relates to a vehicle equipped with an electrical unit. Conventionally, vehicles have been proposed that feature an airbag on the underside of the battery pack that deploys during a vehicle collision (see, for example, Patent Document 1). In this vehicle, the airbag deploys during a vehicle collision, protecting the battery pack. Japanese Patent Publication No. 2019-162908 This is a diagram showing the vehicle's configuration.This is a side view showing the arrangement of the electrical unit and the airbag unit.This is a perspective view showing the arrangement of the electrical unit and airbag unit.This diagram shows the configuration of the electrical unit and the airbag unit.This diagram shows the state of the electrical unit and airbag unit during a collision.This diagram shows the electrical unit and airbag unit after a collision.This diagram shows the configuration of the airbag unit according to the second embodiment.This diagram shows the deployment of the airbag during a front-right collision. <1. First Embodiment> [1.1 Vehicle Configuration] Figure 1 is a diagram showing the general configuration of vehicle 1. In the following explanation, the direction of travel of vehicle 1 will be referred to as the forward direction, the direction of reverse of vehicle 1 as the rear direction, the right side relative to the direction of travel of vehicle 1 as the right direction, the left side relative to the direction of travel of vehicle 1 as the left direction, the vertically upward direction as the upward direction, and the vertically downward direction as the downward direction. As shown in Figure 1, Vehicle 1 is a hybrid vehicle equipped with an engine 2 and a motor 3 as power sources. Vehicle 1 comprises the engine 2, motor 3, transmission 4, electrical unit 5, battery 6, airbag ECU (Electronic Control Unit) 7, collision sensor 8, and airbag unit 9 (see Figure 2). Note that the airbag unit 9 is omitted in Figure 1. Engine 2 is, for example, a horizontally opposed engine in which a pair of cylinder groups are arranged horizontally on either side of a crankshaft. Engine 2 reciprocates a piston using the combustion pressure obtained by burning a mixture of gasoline and air in the cylinder. Engine 2 then generates power by rotating a crankshaft, which is connected to the piston via a connecting rod. Engine 2 may also be an inline engine, a V-type engine, or the like. Furthermore, Engine 2 may be a diesel engine. The engine 2 is fixed in an engine compartment 12, which is enclosed by the hood 10 and the body frame 11 at the front of the vehicle 1. The transmission 4 is connected to the rear of the engine 2. The transmission 4 includes a motor 3, a gearbox, and a forward/reverse gear selector, and is positioned from the rear of the engine compartment 12 to below the passenger compartment. The transmission is connected to the crankshaft of engine 2 and transmits power from the crankshaft to the drive wheels in a variable speed manner, thereby driving vehicle 1. The forward/reverse selector switches vehicle 1 between forward and reverse. Motor 3 is, for example, a three-phase AC motor, connected to battery 6 via electrical unit 5. Motor 3 generates driving force using electricity supplied from battery 6 via electrical unit 5, and transmits this driving force to the drive wheels, thereby propelling vehicle 1. Furthermore, motor 3 generates electricity (power) through regenerative operation. The electricity generated by the regenerative operation of motor 3 is supplied to battery 6 via electrical unit 5. The electrical unit 5 is a so-called high-voltage component. The electrical unit 5 converts the DC current supplied from the battery 6 into three-phase AC current and supplies it to the motor 3. Furthermore, when the motor 3 performs regenerative operation, the electrical unit 5 converts the AC current supplied from the motor 3 into DC current and supplies it to the battery 6. The configuration of the electrical unit 5 will be described in detail later. The battery 6 is located, for example, under the rear seats or trunk. The battery 6 is a so-called high-voltage battery capable of storing electricity to supply power to the motor 3. The airbag ECU 7 is a control device that controls the deployment of the airbag 42 (see Figure 4). The collision sensor 8 is connected to the airbag ECU 7. The collision sensor 8 is, for example, an acceleration sensor and is mounted on the front of the vehicle 1. Alternatively, the collision sensor 8 could be any device that detects a collision with the vehicle 1, such as an external camera or radar. The airbag ECU 7 detects a collision with vehicle 1 based on the detection result of the collision sensor 8, i.e., the acceleration occurring in vehicle 1. Alternatively, the airbag ECU 7 may also detect the direction of the collision with vehicle 1 based on the detection result of the collision sensor 8, i.e., the acceleration occurring in vehicle 1. [1.2 Arrangement of th