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Design Concepts of the Four-Wheel-Independent Electro-Hydraulic Braking System
Technical Paper
2014-01-2537
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
The four-wheel-independent Electro-hydraulic Braking system (4WI EHB) is a wet type Brake-by-Wire system for passenger vehicle and is suitable for electric vehicle (EV) and hybrid electric vehicle (HEV) to cooperate with regenerative braking. This paper gives a review on the design concepts of the 4WI EHB from the following three aspects. 1. Hydraulic architectures. 2. Design concepts of the brake actuator. 3. Installation of the components on the vehicle. Simulations and experiments are carried out to further explore the performance of hydraulic backup and implicit hardware redundancy (IHR). A method to integrate the IHR with hydraulic backup without increasing the total amount of valves is proposed, making the IHR cost and weight competitive. By reviewing various design concepts and analyzing their advantages and drawbacks, a cost and weight competitive design concept of the 4WI EHB with good fail-safe and fault-tolerant performance is proposed.
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Citation
Wang, Z., Yu, L., Wang, Y., Wu, K. et al., "Design Concepts of the Four-Wheel-Independent Electro-Hydraulic Braking System," SAE Technical Paper 2014-01-2537, 2014, https://doi.org/10.4271/2014-01-2537.Also In
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