초록 ▼

A system for electrical braking and the storage for reuse of the braking energy is disclosed using alternating current (AC) rather than direct current (DC) generators coupled to the wheels of the vehicle to be braked. Upon braking, the AC generators feed the primary coil of a transformer whose secon

A system for electrical braking and the storage for reuse of the braking energy is disclosed using alternating current (AC) rather than direct current (DC) generators coupled to the wheels of the vehicle to be braked. Upon braking, the AC generators feed the primary coil of a transformer whose secondary coil can be tapped at one of a number of different turns. Means are provided for changing the tap points so as to increase the number of turns in the secondary as the speed of the braked wheel declines. The output from the secondary is fed to a rectifier and thereafter the direct current is fed to a battery energy storage device. By increasing the turns of the secondary as the wheel speed drops, more energy can be fed and stored in the battery and the range of effective braking by the alternating current generator can be extended to lower speeds.

대표청구항 ▼

[ I claim:] [1.] In a vehicle having an energy storage device and at least one turning wheel, a system for electrically braking that wheel, in response to a braking signal, comprising:tachometer means for approximately sensing the speed of the wheel;a variable transformer having a primary coil and a

[ I claim:] [1.] In a vehicle having an energy storage device and at least one turning wheel, a system for electrically braking that wheel, in response to a braking signal, comprising:tachometer means for approximately sensing the speed of the wheel;a variable transformer having a primary coil and a secondary coil and means for varying the primary to secondary coil turn ratio from a lower to higher value in response so said tachometer means sensed speed;a rectifier means connected to the secondary coil of said variable transformer to receive output of said variable transformer to produce direct current energy therefrom and feeding that direct current energy to the vehicle's energy storage device;an alternating current (AC) generator coupled to the wheel so as to generate AC output; andmeans for effectively connecting, in response to the braking signal, said generator to said primary coil of said variable transformer whereby said AC generator brakes the wheel and provides energy which is fed to said transformer means and to said rectifier means and stored in the energy storage device.