System for, and of, maintaining operative voltage levels in a toy

Abstract

A vehicle may have a chassis, wheels rotatably mounted on the chassis and motors disposed on the vehicle for selectively rotating the wheels to (a) accelerate the vehicle forwardly and rearwardly, (b) spin-turn the vehicle (turn the vehicle on a substantially stationary position), (c) turn the vehicle to the right or left during the vehicle movement forwardly or rearwardly, and (d) move the vehicle forwardly or rearwardly at a substantially constant speed. Energy is introduced from a battery in the vehicle to an energy storage member (e.g. capacitor) in the vehicle and from the capacitor to a microprocessor in the vehicle. The microprocessor controls the operation of the vehicle motor(s) in performing individual ones of the movements specified in (a) to (d) above. In accordance with the microprocessor operation, energy is introduced to the vehicle motors on a pulse width modulation basis where the pulse width in each modulation at each instant is dependent upon the operations of the motor(s) in performing individual ones of the motor movements specified in (a) to (d) above. For each vehicular speed of movement, the pulse widths of the energy modulations introduced to the motor(s) are greater for the movement (a) than for the movement (b), greater for the movement (b) than for the movement (c) and greater for the movement (c) than for the movement (d). In this way, the operative voltage levels are maintained.