Topic
Dynamic braking
About: Dynamic braking is a research topic. Over the lifetime, 3472 publications have been published within this topic receiving 34897 citations. The topic is also known as: Rheostatic brake.
Papers published on a yearly basis
Papers
More filters
Patent•
23 Nov 1999
TL;DR: An electro-hydraulic braking system of the type capable of operating in a braking-by-wire mode where hydraulic pressure is applied to braking devices at the vehicle wheels in proportion to the driver's braking demand as sensed electronically at a brake pedal, was presented in this paper.
Abstract: An electro-hydraulic braking system of the type capable of operating in a braking-by-wire mode wherein hydraulic pressure is applied to braking devices at the vehicle wheels in proportion to the driver's braking demand as sensed electronically at a brake pedal, in a push-through mode wherein hydraulic pressure is applied to the braking devices at the vehicle wheels by way of a master cylinder coupled mechanically to the brake pedal and in an ABS mode in which the braking pressures at the individual wheels are controlled in dependence, inter alia, on the detected rotational behavior of the vehicle wheels, and which includes a hydraulic travel simulator which is connected hydraulically to the master cylinder by way of an electrically controlled isolation valve for providing improved feel for the driver through the brake pedal in the push-through operating mode. In order to ensure that the brake pedal cannot be pushed beyond a position corresponding to a wheel-locking pressure, and thereby make it easier for the driver to modulate the brake pressure and avoid excessive deceleration if the road adhesion improves, the travel simulator isolation valve is arranged to be closed when the ABS mode is active.
12 citations
15 Jul 2001
Abstract: Conventional angle stability controls do not always meet the power consumers' requirements. There are spread interconnected power systems where application of generator tripping for stability improvement is accompanied by load tripping to counterbalance the effect of tripping the generators. This resume discusses a concept having potentialities for advanced stability control for such power systems. The concept is based on unconventional combining of centralized and decentralized control. That would be possible if to make use of repeated-several-times dynamic braking and repeated-several-times fast valving to maintain synchronism within several seconds following an emergency. Those seconds could be used to predict the process evolution applying a software for power system dynamics simulation to determine indispensable control actions for keeping stability in post-emergency state.
12 citations
Patent•
24 Apr 1969TL;DR: In this article, an arrangement for controlling dynamic braking of a vehicle traction motor system wherein the effective average dynamic braking resistance is adjustable between predetermined minimum and maximum values, and wherein the motor field system is operated in full field mode or partial field mode, depending on whether commanded (requested) braking current at a given speed is greater or less than a predetermined value which for the given speed, is at least that which would obtain in the full-field mode and with the maximum effective average braking resistance in the circuit.
Abstract: There is disclosed an arrangement for controlling dynamic braking of a vehicle traction motor system wherein the effective average dynamic braking resistance is adjustable between predetermined minimum and maximum values, and wherein the motor field system is operated in full field mode or partial field mode, depending on whether commanded (requested) braking current at a given speed is greater or less than a predetermined value which for the given speed is at least that which would obtain in the full field mode and with the maximum effective average dynamic braking resistance in the circuit.
12 citations
TL;DR: In this paper, an experiment was carried out involving 24 subjects all driving a truck where automatic split friction braking was emulated, and an existing driver-vehicle model was adapted and implemented to improve understanding of the observed outcome.
Abstract: The steering system in most heavy trucks is such that it causes a destabilising steering wheel torque when braking on split friction, that is, different friction levels on the two sides of the vehicle. Moreover, advanced emergency braking systems are now mandatory in most heavy trucks, making vehicle-induced split friction braking possible. This imposes higher demands on understanding how the destabilising steering wheel torque affects the driver, which is the focus here. Firstly, an experiment has been carried out involving 24 subjects all driving a truck where automatic split friction braking was emulated. Secondly, an existing driver–vehicle model has been adapted and implemented to improve understanding of the observed outcome. A common conclusion drawn, after analysing results, is that the destabilising steering wheel torque only has a small effect on the motion of the vehicle. The underlying reason is a relatively slow ramp up of the disturbance in comparison to the observed cognitive delay amongst subjects; also the magnitude is low and initially suppressed by passive driver properties.
12 citations
12 citations