new pump control cycle namely door sensor 40 showing an open door brake sensor 28 showing that the brakes are on and vss 76 at 0 kph if these conditions are met the pump motor 90 is shut off until the door sensor 40 shows that the door is closed while the vehicle is underway a traffic light detector 134 may be used in conjunction with brake 28 amp speed 76 sensors to detect that the vehicle is stopped for a light during which time the pump motor 90 is turned off once the traffic light turns green as signaled to the system controller 12 by the traffic light detector 134 the pump motor 90 is turned back on fig3 is a graphical plot showing how much time a transit bus is stationary during its route by plotting speed mph against time mins fig4 is a comparative chart showing a range of accessory loads 136 in kilowatts kw for two representative vehicle masses and also shows the power consumption rates in kilowatt hours kw h without load shedding control 138 and with load shedding control 140 the preferred embodiment of the electric vehicle power steering pump control system amp method will now be described in detail the disclosed power amp charging control system needs to shed the pump motor 90 load at the appropriate times and durations for efficient vehicle opportunity charging and so needs specific triggers to start and end the pump motor control cycle see fig2 two methods include but are not limited to door control method and traffic light detection table 1 below lists characteristic parameters of the passport transit bus duty cycle data.