Toyota Jidosha Kabushiki Kaisha

Yazaki Corporation

Ryouji Hironaka

Tomokazu Yamauchi

Takeshi Nozaki

Koichi Nakae

Kazunobu Eritate

Hidehiko Kuboshima

Takeshi Ogue

Hitoshi Imura

A vehicle includes an engine, a rotating electric machine, a high-voltage power line, a high-voltage battery, an inverter, a capacitor, an electronic control unit, a low-voltage battery, an alternator, and a low-voltage power line. The capacitor is connected to the high-voltage power line. The electronic control unit is configured to control the engine such that the engine is operated and the alternator supplies electric power to the low-voltage power line in a case where the possibility of the occurrence of a collision of the vehicle is detected. The electronic control unit is configured to perform control such that the capacitor discharges a residual electric charge in a case where the possibility of the occurrence of the collision of the vehicle is detected or in a case where the occurrence of the collision of the vehicle is detected.

Vehicle with capacitor discharge control

A vehicle includes an engine, an automatic transmission, a second clutch for engine disconnection, a rotating electric machine, a first clutch for rotating electric machine separation, and an electronic control unit. The electronic control unit switches the first clutch from a release state to an engagement state in a case where a collision of the vehicle occurs, the first clutch is in the release state, and a rotation speed of the rotating electric machine is higher than an input shaft rotation speed of the automatic transmission. In a case where the collision of the vehicle occurs, the first clutch is in the release state, and the rotation speed of the rotating electric machine is lower than the input shaft rotation speed of the automatic transmission, the first clutch is maintained in the release state.

Control device and control method for vehicle

A wire harness includes a conductive path configured to electrically connect between high-voltage devices. The conductive path includes a main line and a branch line that branches from the main line. An overcurrent cut-off portion is disposed on a way of the branch line to cut off an overcurrent.

Wire harness

A voltage measuring apparatus is configured to measure voltage between a positive terminal and a negative terminal of a device, and the voltage measuring apparatus includes: a PTC thermistor that is connected to one of terminals of the device; and a measuring circuit that measures voltage of one of the terminals through the PTC thermistor with respect to a specified reference potential and voltage of the other of the terminals with respect to the reference potential. The voltage measuring apparatus detects temperature abnormality of the device or components associated with the device.

Voltage measuring apparatus with temperature abnormality detection function and power conversion apparatus

An electric power converter that can easily be assembled is provided. An electric power converter includes a semiconductor stacking unit, a frame and a spring unit. The semiconductor stacking unit has a configuration in which the semiconductor modules and coolers are stacked. The spring unit is inserted between one end of the semiconductor stacking unit in a stacking direction, and a support provided on the frame, and fixes the semiconductor stacking unit while applying pressure thereto. The spring unit is provided with a first plate, a second plate, and a coil spring sandwiched between the first and second plates. A recess is provided in the first plate so as to have a gap between the first plate and the end surface of the semiconductor stacking unit. A penetrating passage through which the entire spring unit passes along a bottom of the recess is provided in the spring unit.

Electric power converter and method of manufacturing the same

A collision detection device for a vehicle detects a collision to the vehicle from any direction. Smoothing capacitors () and an inverter are housed within a case (). Electrode bus bars () are connected to the positive electrode plates and negative electrode plates of the smoothing capacitors (). The smoothing capacitors () are caused to protrude toward the inner surface of the case () from the periphery of the smoothing capacitors (), and the ends of the electrode bus bars () are caused to face the inner surface of the case (). The occurrence of a collision is detected by detecting the short-circuiting or grounding of the electrode bus bars ().

Collision detection device for vehicle

A metal plate () is buried in a gasket () of a case () for accommodating an electric device such as an inverter. The metal plate () is connected to a control board () in the case (), and the voltage of the metal plate () is determined. A reference voltage is applied to the metal plate (), and the case () is grounded. When the metal plate () is brought into contact with the case () or disconnected due to a crash, the voltage of the metal plate () is thereby changed, and the control board () detects a crash, based on the change in the voltage.

Growing community of inventors

Gamagoori, Japan

Ryouji Hironaka