Adjustable regenerative limit and warning system

摘要

An adjustable regenerative limit and warning system and method for controlling regenerative energy of a vehicle. The system includes a battery, a motor, a processor and an indicator. The motor provides regenerative energy to the battery during deceleration of the vehicle. The processor determines instantaneous or calculated traction loss of the vehicle and controls or limits the regenerative energy provided to the battery to avoid or reduce such traction loss. A drive mode having a predetermined regenerative energy capability is selected by the processor for limiting the regenerative energy. Sensors coupled with the battery sense characteristics of the battery for provision to the processor for determining a charge capability of the battery. If the charge capability for the battery is lower than the regenerative energy capable by the drive mode, the regenerative energy may be further limited and a warning or notification transmitted to a user of the vehicle.

主权项

1. 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, anda 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, andfurther limit the energy provided by the motor to the battery in the second driving mode based on the current charging capability of the battery.