Abstract: For the low-loss braking of an electrically driven vehicle with two electric motors connected in parallel and arranged one on each side of the vehicle and which are controlled by a pulse control, it is proposed, for one, to brake the vehicle above a prescribed rpm threshold value by useful-current braking, and below it by means of regenerative braking. Secondly, instead of an rpm threshold value, the battery current can also be used as the criterion for one of the two different braking types. A high heat generation in the motors is avoided and energy is saved by this braking process. An electric switching circuit for the conversion of this process is indicated.

Abstract: The present invention relates to a control device for a combustion engine and particularly to a combustion engine for use with hydrostatic transmissions particularly as used in a fork lift truck.

Abstract: An electrically powered vehicle, e.g. a forklift truck or other utility-type battery-powered vehicle, is provided with a hydraulic power-steering system with a pump driven by an electric motor. A circuit is provided to cut out the power-steering pump motor when the vehicle attains an elevated speed, thereby reducing battery drain during period in which power-steering is not normally required.

Abstract: An electric motor of the direct-current type, especially for automotive vehicles in which the motor is used for so-called motor braking in addition to normal drive, is energized through a time-delay network which ensures that excess voltage will not be applied prematurely. The time-delay network is rendered effective by a sensor responsive to the sense of rotation of the armature.