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.

Hybrid drive with one-way drive connections

Abstract: A hybrid drive has an internal combustion engine and a motor/generator (M/G) for supplying and absorbing driving forces either alone or in combination. Two one-way devices are assembled between the engine and the M/G. One of these one-way devices permits the M/G to drive the engine at start-up and is released centrifugally at or above engine idle speed. The other one-way device permits the M/G to overrun the engine if the engine is at idle speed during dynamic braking. This permits all the dynamic braking energy of the M/G to be used in a regenerative fashion when battery charging is necessary.

Autonomous emergency braking system

Abstract: An autonomous emergency braking system includes an accelerator pedal operated by the driver coupled to a braking system and used to control the overall vehicle speed. When a forward detection apparatus detects an imminent contact, the braking system automatically applies braking force to the vehicle while the vehicle engine speed is reduced. The amount of brake force applied is a continuous function of relative speed, relative distance, collision probability and target classification. The braking force may be reduced when the driver or passenger are unbuckled or may be disabled if the driver applies full throttle.

Impact of regenerative braking on vehicle stability

Abstract: In a series regenerative braking system, regenerative braking is generally used to the maximum extent prior to the introduction of friction braking During the regenerative braking phase, this generally means that the front to rear braking distribution will be less than ideal since it is often only possible to apply braking torque to a single axle This can have significant implications for vehicle handling and stability during cornering, particularly if the axle concerned is the rear axle The first part of this paper considers the impact on vehicle stability of applying regenerative braking through the rear axle of a sports utility vehicle It is shown that, on low μ surfaces in particular, a moderately sized electric motor has the capability to significantly compromise vehicle stability during cornering The second part of the paper then considers how this issue may be resolved Various solutions are considered and it is shown that redistributing the regenerative braking torque using active driveline devices allows vehicle stability to be protected whilst maintaining maximum energy recovery

Automobile braking control method

Abstract: The braking control method selectively provides a braking force for the wheel brakes which is greater than the braking force represented by the depression of the brake pedal by the vehicle driver, e.g. full braking force, upon detection of a collision situation, by evaluation of an acceleration signal. An Independent claim for a device for controlling an automobile braking system is also provided.