Limited operating strategy for an electric vehicle

1. A vehicle comprising:

a climate control system;

a motor configured to provide drive torque;

a battery for supplying power to the climate control system and the motor; and

a controller configured to:

receive input indicative of a battery state of charge (BSOC) and a state of charge (SOC) recalibration request, and

disable the climate control system, override the request and reduce the power available to the motor, when the BSOC is less than a discharge limit.

2. The vehicle of claim 1 wherein the climate control system further comprises a heater and an HVAC compressor, and wherein the at least one controller is further configured to:

receive input indicative of power provided to the heater and power provided to the HVAC compressor; and

prevent disabling of the climate control system when power is provided to both the heater and the HVAC compressor concurrently.

3. The vehicle of claim 1 wherein the discharge limit is between 7% BSOC and 15% BSOC.

4. The vehicle of claim 1 wherein the at least one controller is further configured to reduce a battery power limit to an intermediate power limit when the BSOC is less than the discharge limit, and wherein the intermediate power limit is between 8 kW and 50 kW.

5. The vehicle of claim 4 wherein the intermediate power limit is between 40 kW and 45 kW.

6. A vehicle system comprising:

a battery configured to supply power to a motor and a climate control system; and

a controller configured to:

receive input indicative of a battery state of charge (BSOC) and a state of charge (SOC) recalibration request, and

disable the climate control system, override the request and reduce the power available to the motor, when the BSOC is less than a discharge limit and greater than a maximum discharge limit.

7. The vehicle system of claim 6 wherein the at least one controller is further configured to:

receive input indicative of a total power supplied by the battery; and

reduce the power available to the motor at a controlled ramp rate when the total power is greater than an intermediate power limit.

8. The vehicle system of claim 6 wherein the at least one controller is further configured to:

receive input indicative of a total power supplied by the battery; and

reduce the power available to the motor at a step rate when the total power is less than an intermediate power limit.

9. The vehicle system of claim 6 wherein the at least one controller is further configured to:

receive input indicative of a defrost status; and

prevent disabling of the climate control system when defrost is active.

10. The vehicle system of claim 6 wherein the at least one controller is further configured to:

receive input indicative of a defrost request; and

upon disabling the climate control system, enabling the climate control system in response to the defrost request.

11. The vehicle system of claim 6 wherein the at least one controller is further configured to:

reduce a battery power limit to an intermediate power limit between 8 kW and 12 kW in response to the SOC recalibration request.

12. The vehicle system of claim 6 wherein the maximum discharge limit is between 3% BSOC and 7% BSOC.

13. A method for limiting operation of an electric vehicle, the method comprising:

supplying battery power to a motor for vehicle propulsion;

receiving input indicative of a battery state of charge (BSOC), a state of charge (SOC) recalibration request and a defrost status;

reducing the battery power available to the motor and overriding the request when the BSOC is less than a discharge limit; and

disabling a climate control system when the BSOC is less than the discharge limit and the defrost status is inactive.

14. The method of claim 13 further comprising:

receiving input indicative of a total power supplied by the battery; and

reducing the battery power available to the motor at a controlled ramp rate when the total power is greater than an intermediate power limit.

15. The method of claim 13 further comprising:

receiving input indicative of a total power supplied by the battery; and

reducing the battery power available to the motor at a step rate when the total power is less than an intermediate power limit.

16. The method of claim 13 further comprising:

displaying a limited operation message when the BSOC is less than the discharge limit.

17. The method of claim 13 wherein the discharge limit is between 7% BSOC and 15% BSOC.

18. The method of claim 14 wherein the intermediate power limit is between and 40 kW and 50 kW.