Method for acquiring a wheel rotation speed of a vehicle wheel
By establishing kinematic coupling between the electric drive motor and the wheels, and using rotor sensors and transmission speed ratios to infer wheel speed, the problem of insufficient accuracy of traditional sensors at low speeds and when stationary is solved, achieving high-precision wheel speed acquisition, which is suitable for driver assistance systems of motor vehicles.
CN113492811BActive Publication Date: 2026-06-30ROBERT BOSCH GMBH
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- ROBERT BOSCH GMBH
- Filing Date
- 2021-04-01
- Publication Date
- 2026-06-30
Smart Images
Figure CN113492811B_ABST
Abstract
In a method for acquiring a wheel rotational speed of a wheel in a vehicle with an electric drive motor, a motor rotational speed of the electric drive motor is determined by means of a rotor sensor, and the motor rotational speed is used for wheel rotational speed acquisition in consideration of a transmission ratio of a transmission between the electric drive motor and the wheel.
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