scispace - formally typeset
Search or ask a question
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
More filters
Patent
18 Jul 1995
TL;DR: In this paper, the authors proposed a method to deal with the variation of the drag of a car and to enhance the drivability of the car by determining a target braking power on the basis of either one of the cars speed just before the time of accelerator off, an accelerator returning speed, the gradient of a road surface, the weight of car, relative positional relation with an obstacle being ahead, and the friction coefficient of the road surface.
Abstract: PROBLEM TO BE SOLVED: To make it possible to deal with the variation of the drag of a car and to enhance the drivability of the car by determining a target braking power on the basis of either one of the car speed just before the time of accelerator off, an accelerator returning speed, the gradient of a road surface, the weight of the car, relative positional relation with an obstacle being ahead, and the friction coefficient of the road surface. SOLUTION: After a controller 24 closes a clutch 16 and unites an internal combustion engine 10 and a transmission 18 by giving a command to a clutch control actuator 40, it controls the quantity of fuel injection of the internal combustion engine 10, the opening of the throttle, ignition timing, and intake/ exhaust by giving commands to actuators 26-32, and causes the internal combustion engine 10 to generate a required output torque. On that occasion, when an accelerator is turned off, the controller 24 determines a target braking power on the basis of either one of the car speed just before the accelerator off, an accelerator returning speed, the gradient of a road surface, the weight of the car, relative positional relation with an obstacle being ahead, and the friction coefficient of the road surface, and controls a regenerative braking force on the basis of that target braking power.

10 citations

Patent
Leon P. Yesel1
15 Jul 1994
TL;DR: In this article, a dynamic braking on the front wheel motors of a motor grader is implemented by turning on all the wheel drive system, depressing the inching pedal, sensing brake pressure, determining ground speed, determining a pump set point current using the ground speed and setting actual pump current to 90% of set-point current.
Abstract: Dynamic braking on the all wheel drive front wheel motors of a motor grader is implemented by turning on all the wheel drive system, depressing the inching pedal, sensing brake pressure, determining ground speed, determining a pump set point current using the ground speed, and setting actual pump current to 90% of set point current. Both sides of the drive loop are monitored and the high side pressure is used to control loop pressure. Motor displacement which is normally controlled by shift lever position is set to low displacement for braking. When the all wheel drive system is turned off, the inching pedal is released, or there is a loss of brake pressure the all wheel drive system disengages. The pump upstrokes to provide an anti-lock feature when the desired brake pressure is less than 30% of the set point. The pump upstrokes to reduce pressure and thereby limit maximum pressure when the desired brake pressure exceeds 30,000 kPa. When the desired brake pressure exceeds 90% of the set point the pump upstrokes to prevent the pump from driving the wheel motors.

10 citations

Patent
Shih Wei-Teh1
24 Apr 1996
TL;DR: In this article, a method and apparatus for providing a more constant braking force was proposed, and the braking device and method according to the invention slowed a mass moving with an initial speed at the time the braking devices are activated.
Abstract: The invention relates to a method and apparatus for providing a more constant braking force. The braking device and method according to the invention slows a mass moving with an initial speed at the time the braking device is activated. Sets of braking elements (16) having more or fewer braking elements (18) are activated depending on the initial speed. The device and method minimize variations in average friction coefficient over wide ranges of initial speed, which are typical for many braking materials. The invention broadens the range of braking materials for use in braking high speed trains, and is particularly useful with carbon/carbon braking materials.

10 citations

Patent
Werner Dipl Ing Stumpe1
26 Oct 1994
TL;DR: In this paper, the brake circuit on the towing vehicle is electronically controlled and provides a signal which is used to control the trailer brakes, by matching the brake pattern of unit and trailer the braking forces on the drawbar are minimised.
Abstract: the brake circuit on the towing vehicle is electronically controlled and provides a signal which is used to control the trailer brakes. By matching the brake pattern of unit and trailer the braking forces on the drawbar are minimised. The brake pattern of the towing unit is controlled wrt. axle loading etc. During braking the brake control system monitors the braking response of the total unit as well as that of the towing unit. This enables the processor control to compute the correction signals for the trailer brakes. For conventional trailer brakes the braking signals are hydraulic or pneumatic.

10 citations

Patent
31 Jan 1997
TL;DR: In this paper, a ride stability control system monitors the wheel slip of the driven wheels and the non-driven wheels as well as the cornering forces and regulates the brake force to counteract the steering deficiency and allow the vehicle to be driven through the curves with a stable control.
Abstract: The ride stability control system monitors the wheel slip of the driven wheels and the non-driven wheels as well as the cornering forces. If understeer or oversteer is detected then the stability controls regulates the brake force to counteract the steering deficiency and allow the vehicle to be driven through the curves with a stable control. If the brakes are applied manually during cornering this braking effect is taken into account in the automatic brake control. To correct for excessive braking the braking forces on the other wheels are adjusted by the stability control, depending on whether the excessive braking is on the driven wheels or on the non driven wheels.

10 citations


Network Information
Related Topics (5)
Control theory
299.6K papers, 3.1M citations
79% related
Control system
129K papers, 1.5M citations
79% related
Adaptive control
60.1K papers, 1.2M citations
76% related
Robustness (computer science)
94.7K papers, 1.6M citations
73% related
Electric power system
133K papers, 1.7M citations
73% related
Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202376
2022156
20216
202018
201925
201834