US 8,788,144 B2 · Braking torque adjustments based on wheel slip

Abstract

A method for adjusting braking in a vehicle having wheels and a regenerative braking system is provided. The method comprises the steps of providing regenerative braking torque for the vehicle via the regenerative braking system at a first level if a wheel slip of the vehicle is not present, and providing regenerative braking torque for the vehicle via the regenerative braking system at one of a plurality of modulated levels if the wheel slip is present. Each of the plurality of modulated levels is dependent on a magnitude, a location, or both, of the wheel slip. Each of the modulated levels is less than the first level.

Claims18

Dependent claims

A method for adjusting braking in a vehicle having wheels and a regenerative braking system, the method comprising the steps of:

providing regenerative braking torque for the vehicle via the regenerative braking system, via instructions provided by a processor, at a first level if a wheel slip of the vehicle is not present;
and
providing regenerative braking torque for the vehicle via the regenerative braking system, via instructions provided by the processor, at one of a plurality of modulated levels if the wheel slip is present, each of the plurality of modulated levels being dependent on a location of the wheel slip, each of the plurality of modulated levels being less than the first level.

A system for adjusting braking in a vehicle having a plurality of wheels and a regenerative braking system, the system comprising:

one or more sensors configured to measure wheel speeds from one or more of the plurality of wheels;
and
a processor coupled to the one or more sensors and configured to:
determine whether and where wheel slip is present using the wheel speeds;
and
cause the regenerative braking system to provide regenerative braking torque for the vehicle:
at a first level if the wheel slip is not present;
and
at one of a plurality of modulated levels if the wheel slip is present, each of the plurality of modulated levels being dependent on a location of the wheel slip, each of the plurality of modulated levels being less than the first level.

6 more elements

Dependencies are inferred from the claim text.

Braking torque adjustments based on wheel slip

Life of this patent

Braking torque adjustments based on wheel slip

Life of this patent

Abstract

Claims18