Appeal No. 2003-0275 Page 6
Application No. 09/550,032
one another without interference wherein said magnet is directly mounted to
either one of said housing or to one of said axle shaft or driveshaft and said
inductor is directly mounted to the other of said axle shaft or driveshaft or to said
housing, said retarding system for producing a retarding force as said magnet
and inductor move relative to one another to slow the rotation of said wheels
when said actuator moves said brake members to the actuated position.
Bodie's teachings
Bodie's invention relates to a regenerative braking method. Referring to Figure
1, an electric vehicle comprises electric motor propulsion system 11, brake system 15
and control unit 13. The electric motor propulsion system 11 includes battery pack 10,
inverter 12 (for use with AC motors), accelerator pedal 20 and electric motor and drive
train 18. Brake system 15 includes brake pedal 70, hydraulic braking system 17 and
electric drum brakes 48 and 50. Control unit 13 includes motor controller 22 for
controlling the propulsion system 11 and brake controller 66 for controlling brake
system 15.
Bodie's hydraulic brake system 17 comprises master cylinder 78, hydraulic lines
40, 42, 86, 87, 94 and 96, accumulator 92, actuators 114 and 116, solenoid
valves 102 and 104, brake calipers 36 and 38 and brake discs 32 and 34. Brake
controller 66 responds to operator depression of brake pedal 70, providing brake
information to motor controller 22 and controlling the hydraulic brake system, including
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