摘要:
In a method for determining a steering angle for a vehicle, a steering angle is determined using a single-track model of the vehicle, wherein the steering angle is corrected only if the difference between the derivative of a measured steering lock angle and the derivative of a calculated steering lock angle is below a threshold value. Otherwise the measurement is repeated.
摘要:
A method serves to compensate the offset of a sensor signal, in particular of an acceleration sensor detecting movements in the driving direction of a vehicle (longitudinal acceleration sensor). The offset of the signal during the lifetime of the vehicle adapted by means of a long-duration offset filter (LZOF). More particularly, the measuring signal for determining the offset, preferably, is not filtered in response to time but in response to travel.
摘要:
In a method for determining a steering angle for a vehicle, a steering angle is determined using a single-track model of the vehicle, wherein the steering angle is corrected only if the difference between the derivative of a measured steering lock angle and the derivative of a calculated steering lock angle is below a threshold value. Otherwise the measurement is repeated.
摘要:
Method and control device for determining a steering angle of a motor vehicle, wherein a theoretical steering angle is calculated by a vehicle model and a measured steering angle is determined with a steering angle sensor, and the difference between the measured and theoretical steering angles is determined, wherein at least one data record including a number of successive measured values is acquired, and a correction constant for the measured steering angle is determined from the mean value of the differences between the theoretical steering angle and the measured steering angle. According to the invention, a confidence level, which changes incrementally between successive data records, is calculated by travel conditions present during the acquisition of the data record and/or an analysis of the data record.
摘要:
A circuit configuration for a vehicle with electronic anti-lock control having circuits for individual control of the braking pressure variation in the wheel brakes of the wheels of one vehicle axle and for limiting the yawing moment owing to braking pressure differences. Circuits (6) detect the pressure reduction signals (PA1, PA2) individually per wheel and determine the pressure difference (DA12) from these signals. In the case of different friction values (.mu.-split situation), the mean pressure build-up gradient at the high-value wheel is varied as a function of the pressure difference (DA12) and the vehicle deceleration. At the time of the appearance of the peak yawing moment, namely directly before the low-value wheel will reenter the stable range, the braking pressure at the high-value wheel will be reduced by a value dependent on the vehicle deceleration and on the pressure difference.
摘要:
Method and control device for determining a steering angle of a motor vehicle, wherein a theoretical steering angle is calculated by a vehicle model and a measured steering angle is determined with a steering angle sensor, and the difference between the measured and theoretical steering angles is determined, wherein at least one data record including a number of successive measured values is acquired, and a correction constant for the measured steering angle is determined from the mean value of the differences between the theoretical steering angle and the measured steering angle. According to the invention, a confidence level, which changes incrementally between successive data records, is calculated by travel conditions present during the acquisition of the data record and/or an analysis of the data record.
摘要:
To monitor the emergency braking capability of an electro-hydraulic braking system (EHBwherein, during normal operation, the brake pressure in the wheel brakes is generated by means of a pressure source comprised of a hydraulic pump, an umulator, and hydraulic valves, and wherein a switch-over to a hydraulic connection between a master cylinder and the wheel brakes is executed in the event of an emergency braking situation. With predetermined events, e.g. during each initialization of the brake system, the emergency braking capability is checked using the following steps: a) charging of the accumulator, without brake pressure buildup in the wheel brakes; measuring the accumulator pressure, or the accumulator volume or the filling level of the accumulator; b) pressure introduction into the wheel brakes until a predetermined pressure threshold is reached, with the hydraulic pump deactivated or hydraulically uncoupled; c) measuring the accumulator pressure; d) determining and evaluating the accumulator performance in response to the pressure introduction into the wheel brakes for finding out the current volume requirement and/or the condition of the brake fluid, detecting air inclusions, etc., and for judging the current emergency braking capability of the brake system.
摘要翻译:为了监测电动液压制动系统的紧急制动能力(EHB,在正常操作期间,通过由液压泵,umulator和液压阀构成的压力源产生车轮制动器中的制动压力,其中 在紧急制动情况下,执行主缸和车轮制动器之间的液压连接的切换,例如在制动系统的每次初始化期间,通过以下步骤检查紧急制动能力的预定事件 :a)对蓄能器充电,无刹车压力累积在车轮制动器中; 测量蓄能器压力或蓄能器体积或蓄能器的灌装水平; b)压力引入车轮制动器,直到达到预定的压力阈值,液压泵停用或液压脱开; c)测量蓄能器压力; d )确定和评估蓄能器性能,以响应于引入到车轮制动器中的压力,以便找出当前的体积要求和/或制动液的状况,检测空气夹杂物等,并且用于判断当前的紧急制动能力 制动系统。