ELECTRICAL VEHICLE RANGE PREDICTION
First Claim
1. A method for determining an available range for a vehicle operating on battery power from a battery, said method comprising:
- determining a useable battery energy value based on battery state-of-charge and battery capacity;
determining a power value needed to heat or cool a vehicle cabin by a vehicle heating, ventilation and cooling (HVAC) system;
determining an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling where the estimated energy value is determined using the power value;
determining a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads;
determining a recent distance traveled value; and
determining the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value.
3 Assignments
0 Petitions
Accused Products
Abstract
A method for predicting the remaining travel distance of an electric vehicle. The method includes determining a useable battery energy value based on battery state-of-charge and battery capacity and a power value needed to heat or cool a vehicle cabin. The method determines an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling, where the estimated energy value is determined using the power value. The method determines a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads. The method determines a recent distance traveled value and determines the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value.
30 Citations
20 Claims
-
1. A method for determining an available range for a vehicle operating on battery power from a battery, said method comprising:
-
determining a useable battery energy value based on battery state-of-charge and battery capacity; determining a power value needed to heat or cool a vehicle cabin by a vehicle heating, ventilation and cooling (HVAC) system; determining an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling where the estimated energy value is determined using the power value; determining a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads; determining a recent distance traveled value; and determining the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
-
-
10. A method for determining an available range for a vehicle operating on battery power from a battery, said method comprising:
-
determining a useable battery energy value based on battery state-of-charge and battery capacity; determining a power value needed to heat or cool a vehicle cabin a vehicle heating, ventilation and cooling (HVAC) system; determining an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling where the estimated energy value is determined using the power value; determining a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads; determining a recent distance traveled value; determining the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value; storing the recent distance traveled value, the actual recent energy used value, the recent energy used value with no HVAC systems load and the recent energy used with maximum HVAC systems load in a short-term accumulator; storing the recent distance traveled value, the recent energy used value, the recent energy used with no HVAC system loads and the recent energy used with maximum HVAC system loads in a long-term accumulator; determining the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value; and calculating range jumps of the available range for the vehicle in response to usage of the HVAC system. - View Dependent Claims (11, 12, 13, 14, 15)
-
-
16. A system for determining an available range for a vehicle operating on battery power from a batter, said system comprising:
-
means for determining a useable battery energy value based on battery state-of-charge and battery capacity; means for determining a power value needed to heat or cool a vehicle cabin a vehicle heating, ventilation and cooling (HVAC) system; means for determining an available battery energy value based on the useable battery energy value and an estimated energy value to provide the vehicle cabin heating or cooling where the estimated energy value is determined using the power value; means for determining a recent energy used value based on an actual recent HVAC energy used value, a recent energy used value with no HVAC system loads and a recent energy used value with maximum HVAC system loads; means for determining a recent distance traveled value; and means for determining the range by dividing the recent distance traveled value by the recent energy used value and multiplying by the available battery energy value. - View Dependent Claims (17, 18, 19, 20)
-
Specification