Selective braking of four wheel steering vehicle
Number of patents in Portfolio can not be more than 2000
United States of America
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Mar 1, 2022
Grant Date -
Apr 2, 2020
app pub date -
Sep 17, 2019
filing date -
Sep 17, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A four wheel steering vehicle (1), in which front wheels (2f) and rear wheels (2r) can be steered in response to a steering input from a steering wheel (11), includes a rear wheel steering control unit (50) that variably controls a rear wheel steering device such that the rear wheels are steered in a prescribed relation to a steered angle of the front wheels. When the steering input is determined while the front wheel brake and the rear wheel brake are engaged, the rear wheel steering control unit disengages the rear wheel brake and steers the rear wheels. When the fore and aft inclination angle detected by an inclination sensor (40) provided on the vehicle is greater than a threshold value, the rear wheel steering control unit prohibits a steering of the rear wheels and keeps the rear wheel brake engaged even if the steering input is determined.
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