Abstract:
Systems and methods are disclosed herein for controlling braking systems. In this regard, a method for controlling brakes may comprise receiving, by an antiskid control (ASK), a first wheel speed, calculating, by the ASK, a first wheel reference speed (WRS), and calculating, by the ASK, a first wheel reference estimate (WRE). In various embodiments, the method may further comprise determining if the first WRS is within a threshold value of the first WRE. In various embodiments, the method may further comprise calculating an ASK desired pressure. The ASK desired pressure may be calculated using the first WRS in response to the first WRS being within the threshold value of the first WRE. The ASK desired pressure may be calculated using the first WRE in response to the first WRS being outside the threshold value of the first WRE.
Abstract:
An electronic actuator control system and method (“system”) are provided. The system may comprise an electro-mechanical actuator (EMA) configured to generate a force and an electro-mechanical actuator controller (EMAC) electrically coupled to the EMA. The EMAC may include a non-transitory memory communicating with the EMAC, the non-transitory memory having instructions stored thereon that, in response to execution by the EMAC, cause a processor to perform operations. The operations carried out by the EMAC may comprise commanding the EMA to apply a force, determining an expected voltage in response to the force, measuring a voltage generated by the EMA, and comparing the voltage generated by the EMA to the expected voltage.
Abstract:
A method is provided for detecting an uncommanded brake overdrive condition in an aircraft brake control system. Method comprises monitoring, by an electric brake actuator controller (EBAC) in the brake control system, at least one of the following: a load cell current for deviation from a nominal load cell current and a load cell output signal (LC Sig+) and (LC Sig−) of a plurality of individual load cells and an excitation voltage signal comprising a (Vexc+) signal and a (Vexc−) signal. EBAC detects at least one resistance disturbance indicating the uncommanded brake overdrive condition if load cell current is less than nominal load cell current, if an absolute value of the difference between a sum of LC Sig+LC Sig− for at least one individual load cell and a sum of Vexc++Vexc− is greater than a predefined threshold, or both.
Abstract translation:提供一种用于在飞行器制动控制系统中检测未命令的制动器过驱动状态的方法。 方法包括通过制动控制系统中的电动制动器致动器控制器(EBAC)监测下列中的至少一个:用于偏离标称测力传感器电流和称重传感器输出信号(LC Sig +)和( LC Sig-)和包括(Vexc +)信号和(Vexc-)信号的激励电压信号)。 如果至少一个单独称重传感器的LC Sig + LC Sig之和的差值绝对值,则EBAC检测到至少一个电阻扰动,指示如果称重传感器电流小于标称测力传感器电流,则不指令制动过驱动条件; Vexc ++ Vexc-的总和大于预定义的阈值,或两者兼而有之。
Abstract:
An electronic brake system is provided comprising a brake control unit (BCU), an electronic brake actuation controller (EBAC) electrically coupled to the BCU, and an electronic brake actuator (EBA) electrically coupled to the EBAC. The EBAC is configured to detect the EBA based on an electric signal from the EBA. A method of detecting an EBA is also provided. The method comprises the steps of measuring a voltage on an input pin connected to an EBAC, determining an EBA type connected to the input pin based on the voltage, and activating circuitry and software in an EBAC corresponding to the EBA type.
Abstract:
Methods for testing the operation of an aircraft braking system utilize the steps of applying a predetermined electrical energy level to an electromechanical actuator attached to a brake assembly, followed by discontinuing electrical energy to the electromechanical actuator. In some test methods, an actuation level of the electromechanical actuator is determined and used to evaluate braking performance. In other tests, a voltage generated by an electric motor in an actuator is measured and used to evaluate braking performance.
Abstract:
Methods for testing the operation of an aircraft braking system utilize the steps of applying a predetermined electrical energy level to an electromechanical actuator attached to a brake assembly, followed by discontinuing electrical energy to the electromechanical actuator. In some test methods, an actuation level of the electromechanical actuator is determined and used to evaluate braking performance. In other tests, a voltage generated by an electric motor in an actuator is measured and used to evaluate braking performance.