Regenerative braking electric vehicle with four motors
First Claim
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1. An electric vehicle having four wheels and comprising:
- electric drive means for independently driving and braking each of the four wheels, said electric drive means including four electric motors, one electric motor being associated with each of the four wheels;
means for detecting the loading on each wheel and generating signals representing the loadings on the four respective wheels; and
signal processing means for receiving said load signals, for calculating a distribution of braking forces to the four wheels and for generating output signals to said electric drive means to apply a braking force to its associated wheel in accordance with the calculated distribution of braking force.
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Abstract
An electric vehicle is equipped with four electric motors, one for driving each of the four wheels, load sensors for detecting the loads applied to the wheels, and a control unit. The control unit determines the driving forces distributed to the wheels upon regeneration according to the loads applied to the wheels in such a way as to improve safety.
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Citations
7 Claims
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1. An electric vehicle having four wheels and comprising:
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electric drive means for independently driving and braking each of the four wheels, said electric drive means including four electric motors, one electric motor being associated with each of the four wheels; means for detecting the loading on each wheel and generating signals representing the loadings on the four respective wheels; and signal processing means for receiving said load signals, for calculating a distribution of braking forces to the four wheels and for generating output signals to said electric drive means to apply a braking force to its associated wheel in accordance with the calculated distribution of braking force. - View Dependent Claims (2, 3, 4, 5)
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6. An electric vehicle comprising:
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a plurality of wheels; a plurality of electric motors for independently driving and braking each wheel; load sensing means for detecting the loading on each individual wheel; a steering wheel position sensor for detecting the angle through which a steering wheel is turned; a brake sensor for sensing when the brakes have been applied; and a control unit for determining the driving force and braking force to be distributed to each wheel, responsive to the detected loading on that wheel, the angle through which the steering wheel has been turned, and the signal from said brake sensor. - View Dependent Claims (7)
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Specification