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Electronically controllable braking force amplifier maintains control parameter unchanged if difference between driver demand and control parameters does not exceed defined tolerance value
Electronically controllable braking force amplifier maintains control parameter unchanged if difference between driver demand and control parameters does not exceed defined tolerance value
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机译:如果驾驶员需求和控制参数之间的差未超过定义的公差值,则电子可控制动力放大器将控制参数保持不变
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摘要
The braking force amplifier has a vacuum chamber (23) and a pressure chamber (24) separated by a movable wall (22) and a control valve arrangement with an electromagnetic actuator (26) for setting a pressure difference between the chambers and with holding, pressure build-up and pressure decrease settings. A sensor (31) detects a signal correlated with the pressure in a hydraulic cylinder (25) with a hydraulic connection leading to a wheel brake (4) and forming a control parameter. An electronic control unit (ECU) determines a demand parameter taking into account the output of a sensor (11) detecting the driver's demand. The control parameter value remains unchanged if the control difference between the demand and control parameters does not exceed a defined tolerance value.
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