Patent ID: 8868270

Claim:
A charging system for a vehicle comprising: a battery; a motor coupled with the battery and configured to provide energy to the battery for charging the battery; a first sensor for sensing wheel slip of the vehicle; a memory for storing: a first plurality of deceleration torque values corresponding to a first driving mode for regenerating energy for storage in the battery at a first energy regeneration rate, and a second plurality of deceleration torque values corresponding to a second driving mode for regenerating energy for storage in the battery at a second energy regeneration rate that is less than the first energy regeneration rate; and a processor coupled with the first sensor and the motor, the processor configured to: change a current driving mode from the first driving mode to the second driving mode when the wheel slip sensed by the first sensor indicates a traction loss, in order to limit the energy provided by the motor to the battery, limit the energy provided by the motor to the battery based on the second plurality of deceleration torque values, determine a current charging capability of the battery, and further limit the energy provided by the motor to the battery in the second driving mode based on the current charging capability of the battery.