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.

Vehicle behavior control system

Abstract: A system for controlling behavior of a vehicle having a laser radar for detecting an obstacle present on a road on which the vehicle is traveling and operating the brake automatically to avoid contact with the obstacle, and having a power-assist steering actuator including an electric motor installed in the steering system. In the system, it is determined whether the vehicle is steered by the steering wheel as manipulated by the vehicle operator or the vehicle is steered by a force generated by the interplay between the tire and road due to the automatic braking and, when vehicle is steered by the force generated by the tire/road interplay, the electric motor of the steering actuator is controlled to drive in the direction to cancel the force, thereby preventing the vehicle behavior from degrading to deviate from the desired course of travel and preventing various disadvantages such as failure to achieve the desired obstacle detection necessary for an effective obstacle avoidance control.

Hydraulic braking circuit for vehicle - incorporates wheel-spin controller and has hydraulic servo pump between master cylinder and wheels.

Abstract: The braking system has a servo pump providing braking force to control wheel-spin as well as additional brake control force for ABS braking. The brake pedal circuit is effectively isolated from the varying brake pressures during ABS control. The system has brake pressure monitors to regulate the pressure pattern. The wheel-spin controller applies the servo pressure direct to the front wheels, for front wheel drive, with improved oversteer correction. Switching valves switch from normal braking to ABS or to wheel-spin control. An electronic processor controls both functions. ADVANTAGE - Simplified system. Min. pressure changes transmitted to brake pedal, improved stability.

Electrohydraulic braking system

Abstract: Electrohydraulic braking applied to a plurality of automotive vehicle braking channels operates to drive brake pressure modulator position toward a position corresponding to a braking input and corrected for channel to channel braking variations and vehicle deceleration error. A function for adapting the braking input to a position command is provided for each channel and is periodically adapted in accord with a difference between the channel's brake pressure modulator position error and a desired position error.

MPC for vehicle lateral stability via differential braking and active front steering considering practical aspects

Abstract: This paper presents a control architecture that simultaneously utilizes active front steering (AFS) and differential braking for vehicle lateral stability while minimizing longitudinal perturbations. This control scheme is based on the model predictive control (MPC) using the extended bicycle model that captures the lagged characteristics of tire forces and actuators. The nonlinearities of tire force are also reflected on the extended bicycle model by linearizing the tire forces at the operating points. Instead of casting the MPC problem into a quadratic program with constraints that require numerical solvers, the proposed method is designed to follow the reference states with desired inputs since the solutions of MPC problems with affine models to track desired states can be easily obtained by matrix inversion. Simulation results, obtained by the vehicle dynamics software Carsim, demonstrate that the suggested method is able to control the vehicle to track the desired path while keeping the vehicle later...

Antilock braking control apparatus for electric vehicle

Abstract: An antilock braking control apparatus includes a regenerative braking part operatively connected with one or more traction motors of an electric vehicle for braking a plurality of wheels of the vehicle by using regenerative braking torque, a second braking part operatively connected with the wheels of the vehicle for braking the wheels by using brake fluid pressure, an antilock brake system part for performing an antilock brake system control process to control a braking force produced by either the regenerative braking part or the second braking part on the wheels to avoid slipping of the braked wheels, and a braking control part for changing a braking force produced by the other braking part on the wheels to equal zero after the antilock brake system part has started performing an antilock brake system control process relating to the former braking part.