Environment-aware regenerative braking energy calculation method
First Claim
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1. A method of operating a vehicle, comprising:
- determining a proposed vehicle trip route;
during planning the proposed vehicle trip route, calculating a total amount of discounted regenerative energy available for the proposed trip route based on static and dynamic physical conditions extending over the proposed trip route and base regenerative braking parameters for the vehicle, said calculation comprising estimating ire a total amount of discounted regenerative energy to be generated from regenerative braking over the entire proposed trip route, the discounted regenerative energy at any point along the proposed trip route calculated by discounting an amount of regenerative energy with respect to a base regenerative braking energy at any point along the proposed trip route, the base regenerative braking energy at any point along the proposed trip route determined from respective static physical conditions predicted to be present at any point along the route, the discounting determined from respective dynamic physical conditions predicted to be present at any point along the proposed trip route, the total amount of discounted regenerative energy estimated to be generated further comprising using regenerative calibration information for the vehicle, the estimation prior to travelling along the proposed trip route; and
,implementing regenerative braking of the vehicle along said proposed trip route using the discounted regeneration energy.
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Abstract
A method of operating a vehicle includes implementing regenerative braking of the vehicle using discounted regeneration energy based on physical route conditions and base regenerative braking parameters for the vehicle.
24 Citations
20 Claims
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1. A method of operating a vehicle, comprising:
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determining a proposed vehicle trip route; during planning the proposed vehicle trip route, calculating a total amount of discounted regenerative energy available for the proposed trip route based on static and dynamic physical conditions extending over the proposed trip route and base regenerative braking parameters for the vehicle, said calculation comprising estimating ire a total amount of discounted regenerative energy to be generated from regenerative braking over the entire proposed trip route, the discounted regenerative energy at any point along the proposed trip route calculated by discounting an amount of regenerative energy with respect to a base regenerative braking energy at any point along the proposed trip route, the base regenerative braking energy at any point along the proposed trip route determined from respective static physical conditions predicted to be present at any point along the route, the discounting determined from respective dynamic physical conditions predicted to be present at any point along the proposed trip route, the total amount of discounted regenerative energy estimated to be generated further comprising using regenerative calibration information for the vehicle, the estimation prior to travelling along the proposed trip route; and
,implementing regenerative braking of the vehicle along said proposed trip route using the discounted regeneration energy. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of operating a vehicle, comprising:
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determining a proposed vehicle trip route; during planning the proposed vehicle trip route, calculating a total amount of discounted regenerative energy available for the proposed trip route based on a regen discount trace and a base regenerative braking energy based on base regenerative braking parameters, said regen discount trace comprising a regenerative braking discount factor associated with said proposed trip route, said calculation comprising estimating a total amount of discounted regenerative energy to be generated from regenerative braking over the entire proposed trip route, the total amount of discounted regenerative energy to be generated estimated by from the regenerative braking discount factor and the base regenerative braking energy, the base regenerative braking energy determined from respective static physical conditions predicted to be present at any point along the route, the regenerative braking discount factor determined from respective dynamic physical conditions predicted to be present at any point along the proposed trip route, the total amount of discounted regenerative energy estimated to be generated further comprising using regenerative calibration information for the vehicle, the estimation prior to travelling along the proposed trip route; and
,implementing regenerative braking of the vehicle along said proposed trip route using said discounted regenerative energy. - View Dependent Claims (9, 10, 11, 12, 13)
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14. A method of operating a vehicle, comprising:
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planning a proposed route for vehicle travel; during planning the proposed; obtaining base regenerative braking parameters for a vehicle, the base regenerative braking parameters determined from respective static physical route conditions predicted over the entire proposed route; calculating base regenerative braking energy for the vehicle along the entire proposed route using the base regenerative braking parameters; obtaining dynamic physical route conditions predicted to be present over the proposed route; calculating regenerative braking energy for the vehicle at any given point along the proposed route using the base regenerative braking parameters; obtaining a regenerative braking discount factor for the vehicle along the entire proposed route using the dynamic physical route conditions to generate a regenerative braking discount map from a vehicle system controller; calculating a total amount of discounted regenerative braking energy available for the vehicle along the entire proposed route using the base regenerative braking energy and the regenerative braking discount factor, said calculation comprising estimating the total amount of discounted regenerative energy to be generated from regenerative braking over the entire proposed route, the total amount of discounted regenerative energy estimated to be generated further comprising using regenerative calibration information for the vehicle, the estimation prior to travelling along the proposed trip route; and implementing regenerative braking of the vehicle along said proposed route using the discounted regenerative braking energy. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification