Abstract
A brake-by-wire system is considered the best solution to realize advanced functions in electric vehicles/hybrid electric vehicles and intelligent vehicles. In this article, a novel electro-hydraul...
Highlights
Brake-by-wire (BBW) systems have the inherent advantages of being small in size and flexible for brake force control
In section ‘‘Pedal movement,’’ we propose a methodology based on the Levant differentiator (LD) to filter signals and realize the brake assist (BA) function
We can conclude the following: (1) the proposed generalized predictive control (GPC) controllers have fine tracking performance; (2) the design of the error dead-zone control method promotes the anti-jamming property effectively, and when controllers of the motor and reducing valve ignore the small error e(k) in the dead-zone, the start-stop frequency of the actuators could be significantly decreased; (3) because of the limitation of the dead-zone nonlinear properties of the actuators, the input–output characteristics of the motor’s low speed and the valve’s low turn-on time are difficult to calibrate via testing and have a relatively wide variation range affected by load
Summary
Brake-by-wire (BBW) systems have the inherent advantages of being small in size and flexible for brake force control. This effect leads to a slightly longer time delay compared to that of other EHBs. To achieve a balance in rapidity and accuracy, in this article, a generalized predictive control (GPC) method is adopted to optimize the pressure tracking performance.
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