Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Vehicle subsystem or accessory control
Patent
1996-06-27
1998-09-15
Louis-Jacques, Jacques H.
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Vehicle subsystem or accessory control
701 42, 701 43, 180422, 180446, 318430, 318432, G06G 770, B62D 504
Patent
active
058094385
ABSTRACT:
In a controller of an electric power steering apparatus for use with an automotive vehicle, a regenerating condition determining section determines whether or not a motor of the vehicle is in a regenerating condition, and a regeneration control signal generating section generates a regeneration control signal to control the regenerating condition of the motor. A switching section selects between the motor control signal and the regeneration control signal in accordance with a result of determination by the regenerating condition determining section. With this arrangement, a motor current including a regenerative current that is caused to flow in the motor in response to a vehicle driver effecting during-stoppage steering maneuvering and then releasing a steering wheel can be controlled independently of a feedback loop of the controller. The regeneration control signal generating section generates a pulse-width-modulated signal of duty cycle corresponding to the offset between a target current and a motor current flowing in the motor. The regenerating condition determining section determines that the motor is in the regenerating condition if the signs of the target current and motor current control signals do not comport with each other and the direction of the steering torque signal and the rotational direction of the motor are opposite to each other.
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Hironaka Shinzi
Kurosawa Takao
Mukai Yoshinobu
Noro Yoshiki
Sugitani Nobuo
Honda Giken Kogyo Kabushiki Kaisha
Louis-Jacques Jacques H.
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