Patent ID: 9527484
Filing Date: 2016-12-27
CPC Classification: B60T,B60W

Claim Text:
1. A method for controlling regenerative braking in a vehicle having a regenerative braking system and a friction braking system, the method comprising the steps of: calculating a maximum regenerative braking torque for the regenerative braking system during operation of the vehicle using a plurality of dynamic vehicle parameters comprising an acceleration of the vehicle, a mass of the vehicle, a wheel radius of the vehicle, and a drive ratio of the vehicle, wherein the maximum regenerative braking torque comprises an amount of regenerative braking torque that would produce the maximum regenerative energy capture corresponding to the maximum regenerative braking torque at a particular point in time during operation of the vehicle; obtaining an input from a driver of the vehicle during operation of the vehicle; determining a driver intended braking torque for the vehicle based on the input from the driver; if the driver intended braking torque for the vehicle is less than the maximum regenerative braking torque for the regenerative braking system, then providing regenerative braking torque for the vehicle via the regenerative braking system in an amount that is equal to the driver intended braking torque for the vehicle; and if the driver intended amount of braking torque for the vehicle is equal to the maximum regenerative braking torque for the regenerative braking system, then: