for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

Full Title

Methods, circuits, or devices for controlling the traction-motor speed of electrically-propelled vehicles > for control of the vehicle or its driving motor to achieve a desired performance, e.g. speed, torque, programmed variation of speed

Child Classifications

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• B60L 15/2009
• B60L 15/2036
• B60L 15/2045
• B60L 15/2054
• B60L 15/2063
• B60L 15/2072
• B60L 15/209
• B60L 15/22 with sequential operation of interdependent switches, e.g. relays, contactors or program drum
• B60L 15/24 with main controller driven by a servomotor (B60L15/28 takes precedence)
• B60L 15/26 with main controller driven through a ratchet mechanism (B60L15/28 takes precedence)
• B60L 15/28 without contact making and breaking, e.g. using a transductor
• B60L 15/30 with means to change over to human control