Denso Corporation

Takuto Suzuki

Hiroshi Inamura

Yuji Hayashi

Nobumasa Ueda

Naoki Yamamoto

Kenji Inokuma

Kensuke Ueda

Yuuki Tsutsu

An estimation device is provided with a braking-driving force acquiring unit that acquires, based on a signal from a sensor that detects a force, braking-driving force information as information indicating a braking force or a driving force applied to wheels of the vehicle; a wheel load acquiring unit that acquires, based on the braking-driving force information, a wheel load received by the wheels from a road surface; and an estimation unit that estimates, based on a value of the wheel load of each wheel included in the vehicle, a gravity center position of the vehicle.

Estimation device

A power system with an electric rotating machine providing an operation of power generation and power running, a switching circuit providing electricity for each phase, by switching a plurality switching elements ON/OFF by the electric rotating machine, a battery section connected to the switching circuit, and switches on electrical pathway, between the switching circuit and the battery section. A power shutoff section to shutoff an electrical pathway when an overcurrent flows in, at least one of the electric rotating machine and the switching circuit. Power control devices are provided with an overcurrent determination which determines that an overcurrent has occurred, based on results of, a first determination that determines a current flow has increased to a predetermined over current threshold, and a second determination that determines that current flow has decreased thereafter, and a switch control that switches the switches open based on a determined result of the overcurrent determination.

Power control apparatus

A first and a second control device capable of transmitting and receiving signals to and from a third control device that performs an overall management to the control devices. The third device transmits a command signal to the second device in response to a reception signal from the first device. The first device transmits, to the second device and the third device, an electrical power storage unit signal includes at least one of control information and abnormality information about charging/discharging. The second device includes a function of controlling actuation of a rotating electrical machine on the basis of an actuation command signal about actuation of the rotating electrical machine transmitted from the third device in response to the electrical power storage unit signal, and a function of controlling actuation of the rotating electrical machine on the basis of the electrical power storage unit signal transmitted from the first device.

Control system

A control apparatus controls rotating electrical machine which is applied to a vehicle in which an engine is automatically stopped in the case where predetermined automatic stop conditions are satisfied, and, the engine is automatically restarted in the case where predetermined restarting conditions are satisfied, the rotating electrical machine receiving supply of an exciting current from a transistor-chopper type exciting circuit in which a first pair of facing arms of a bridge circuit is configured with power transistors, and a second pair of arms is configured with diodes, and the rotating electrical machine having a power generation function based on rotational force of the engine. The control apparatus executes first grounding control in which, during automatic stop of the engine, among the first pair of arms, the power transistor connected on an earth side of the rotating electrical machine is put into an ON state.

Control apparatus of rotating electrical machine

A vehicle power system is provided with a switching power supply that generates an operation power for operating a plurality of ECU by stepping down a power supply supplied from at least one of a generator and a battery, and a power distributor that distributes and supplies the operation power generated by the switching power supply to the individual ECUs.

Growing community of inventors

Kariya, Japan

Takuto Suzuki