Hitachi Automotive Systems, Ltd.

Hitachi Astemo Ltd.

Shigemi Oono

Yoshihiko Akagi

Shinsaku Tsukada

Sadato Horiuchi

An in-vehicle control device includes: a requested torque calculation unit which calculates a requested torque on the basis of a driving state of a vehicle; a requested torque change amount calculation unit which calculates the amount of change in requested torque per unit time as a requested torque change amount; an estimated generation torque calculation unit which calculates estimated generation torque estimated as being generated by an engine; an estimated generation torque change amount calculation unit which calculates the amount of change in estimated generation torque per unit time as an estimated generation torque change amount; and an abnormality detection unit which detects an abnormality of the engine on the basis of the integrated value of a difference between the requested torque change amount and the estimated generation torque change amount, and outputs abnormality determination for the engine.

Control device

An onboard control device has a drive manipulated variable detection unit () for determining a drive manipulated variable manipulated by a driver to impart a propulsive force to a vehicle, a command value calculation unit () for calculating a command value for a drive source of the vehicle based on the drive manipulated variable, a propulsive force control unit () for controlling the propulsive force based on the command value, operating state detection units () for determining the operating states of the drive source, a drive manipulation rate of change calculation unit () for calculating the rate of change in drive manipulation, an operating state rate of change calculation unit () for calculating the rate of change in the operating state, and an abnormality detection unit () for detecting abnormalities in the drive source based on the rates of change in drive manipulation and the operating state.

Onboard control device

To quickly determine whether or not the propulsive force of a vehicle drive source is abnormal. The onboard control device pertaining to the present invention has a drive manipulated variable detection unit for detecting or estimating a drive manipulated variable manipulated by a driver in order to impart a propulsive force to a vehicle, a command value calculation unit for calculating a command value for a drive source of the vehicle on the basis of the drive manipulated variable, a propulsive force control unit for controlling the propulsive force of the drive source on the basis of the command value, operating state detection units for detecting or estimating the operating states of the drive source, a drive manipulation rate of change calculation unit for calculating the rate of change in drive manipulation, an operating state rate of change calculation unit for calculating the rate of change in the operating state, and an abnormality detection unit for detecting abnormalities in at least the drive source on the basis of the rate of change in drive manipulation and the rate of change in the operating state.

Growing community of inventors

Hitachinaka, Japan

Shigemi Oono