Regenerative brake system architecture for an electric or hybrid electric vehicle
OwnerDale Scott Crombez, Patrick J. Curran +1inventors
InventorsDale Scott Crombez, Patrick J. Curran, Steven Lee Napier
Life of this patent
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Abstract
An electric or hybrid electric vehicle 7 is provided which includes a first wheeled axle 10 that is electrically driven and has only electric regenerative brakes. The vehicle 7 also includes a second wheeled axle (22, 32, 44) that has only friction brakes 26. The cost and complexity of friction brakes on the second axle (22, 32, 44) can be avoided.
Claims15
An electric vehicle comprising:
- a first wheeled axle electrically driven with only electric regenerative brakes;
- a second wheeled axle, non-driven and with only friction brakes.
A method of braking an electric vehicle which has a first wheeled axle electrically driven with electric regenerative brakes and a second wheeled axle which is non-driven and with only friction brakes, said method comprising:
- electrically regeneratively braking said first axle to a first level;
- and
- frictionally braking said second axle to provide a braking force upon said vehicle greater than said electric regenerative braking.
A vehicle comprising:
- a first wheeled axle electrically driven with only electric regenerative brakes;
- and
- a second wheeled axle driven by an internal combustion engine with only friction brakes.
A method of braking a vehicle having a first wheeled axle electrically driven with only electric regenerative brakes and a second wheeled axle driven by an internal combustion engine with friction brakes, said method comprising:
- electrically regeneratively braking said first wheeled axle up to a first level;
- and
- frictionally braking said second wheeled axle when said braking requirement of said vehicle is above said first level.
Dependencies are inferred from the claim text.