Device and method for controlling a braking torque, and an at least partially electrically driven vehicle
OwnerAbel Eckartinventor
Life of this patent
Estimating the term…
Abstract
Regenerative deceleration of an at least partially electrically driven vehicle. It is provided that a minimum rotational speed for the wheels at which the regenerative deceleration is to be carried out is ascertained from parameters such as the vehicle speed and the friction coefficient between tires and road surface. The regenerative deceleration of the vehicle is set on the basis of this minimum rotational speed.
Claims11
1-10. (canceled)
A device for controlling a braking torque of an at least partially electrically driven vehicle, comprising:
- a first processing module configured to ascertain an actual speed of the vehicle;
- a second processing module configured to ascertain a friction coefficient between a road surface and tires of the vehicle;
- and
- a control unit configured to determine a minimum rotational speed for wheels of an axle of the vehicle by using the ascertained actual speed and the ascertained friction coefficient, and to issue a request for regenerative deceleration of the vehicle by using the ascertained minimum rotational speed for the wheels of the axle.
An electrically driven vehicle, comprising:
- an electric drive system;
- and
- a device configured to control a braking torque of the vehicle, including:
- a first processing module configured to ascertain an actual speed of the vehicle,
- a second processing module configured to ascertain a friction coefficient between a road surface and tires of the vehicle, and
- a control unit configured to determine a minimum rotational speed for wheels of an axle of the vehicle by using the ascertained actual speed and the ascertained friction coefficient, and to issue a request for regenerative deceleration of the vehicle by using the ascertained minimum rotational speed for the wheels of the axle.
A method for controlling a regenerative braking torque for an at least partially electrically driven vehicle, comprising the following steps:
- ascertaining an actual speed of the vehicle;
- ascertaining a friction coefficient between a road surface and tires of the vehicle;
- determining a minimum rotational speed for wheels of an axle of the vehicle by using the ascertained actual speed and the friction coefficient;
- and
- regeneratively decelerating the vehicle by using the ascertained minimum rotational speed for the wheels of the axle.
Dependencies are inferred from the claim text.