Acceleration computing apparatus and electric power steering apparatus
AssigneeJtekt Corporation
InventorHiroshi Suzuki
Life of this patent
Estimating the term…
Abstract
An acceleration computing apparatus or electric power steering apparatus including wheel speed sensors for detecting original wheel speed of a right front wheel and a left front wheel of drive wheels and wheel speed sensors for detecting original wheel speed of a right rear wheel and a left rear wheel of driven wheels. If it is determined that ABS control is in operation, vehicle speed is calculated based on the wheel speed of the maximum speed of the wheel speed of all wheels. If it is determined that ABS control is not in operation, the vehicle speed is calculated based on the wheel speed of the maximum speed of the wheel speed of the driven wheels. Longitudinal acceleration of the vehicle is computed based on the vehicle speed computed in such a manner.
Claims4
An acceleration computing apparatus for computing acceleration in a longitudinal direction of a vehicle having an anti-lock controller based on vehicle speed, comprising:
- a wheel speed acquisition unit that acquires wheel speed in a plurality of drive wheels and a plurality of driven wheels of the vehicle;
- a determination unit that determines whether or not the anti-lock controller is in operation;
- and
- a vehicle speed computing unit that computes the vehicle speed based on the maximum wheel speed of the plurality of drive wheels and the plurality of driven wheels if the determination unit determines that the anti-lock controller is in operation and that computes the vehicle speed based on the maximum wheel speed of the plurality of driven wheels if the determination unit determines that the anti-lock controller is not in operation.
Dependencies are inferred from the claim text.