PURPOSE:To estimate a mu of road surface accurately even if anti-skid brake control is started on a low mu road by calculating a friction coefficient of a road surface based on the differential value of an aver
Many surveys on vehicle traffic safety have shown that the tire road friction coefficient (TRFC) is correlated with the probability of an accident. The probability of road accidents increases sharply on slippery road surfaces. Therefore, accurate knowled
Wheel braking under the different road condition, we usually can’t get the real-time value of road friction coefficient, which leads the instability of the whole control process [7, 8]. So road friction coefficient has an important significance in the vehicle chassis electronic control system ...
1)friction coefficient沿程阻力系数 英文短句/例句 1.Gives a calculation formula of the absolute error of specific frictional head losses.给出了湍流区沿程阻力系数绝对误差的计算式。 2.Determination Of Friction Factors Of The Caplillary Tube In Refrigerating Machines Based On Experiments;基于试验的制冷机...
Keywords:tire/roadfrictioncoefficient;estimation;vehicle;tire;slidingmodeobserver 1 Intr0ductiOn Thetire/roadfrictioncoemcientisgenerallyre. quiredpreciselyinreal—timeatmodemvehicleactive safetycontrolsystemsandthentheappropriatecontrol logicisused.Althoughtherearecurrentlyalarge ...
A car with mass2000 kgdrives with speed100 km/hon a wet road with friction coefficient0.2. Note!- The frictionworkrequired to stop the car is equal to thekinetic energyof the car. The kinetic energy of the car is Ekinetic= 1/2 m v2(4) ...
Intelligent tires, as an emerging technology, have great potential in real-time monitoring of tire-road contact information and new automotive active safety design. In this paper, a tire-road friction coefficient estimation method is proposed based on intelligent tire technology. First, an intelligent...
1. A device for estimating a friction coefficient on road surface of a vehicle, comprising: first parameter-acquiring means for finding a parameter indicating a driving behavior of the vehicle as a first parameter; second parameter-acquiring means for finding a parameter corresponding to the first ...
There is a relationship between a slippage ratio of each wheel with respect to the road surface and the coefficient of friction μ of the road surface, namely, the slippage ratio, at which a vehicle can stably be controlled, which differs between road surfaces to one having a high coefficient...
1) road friction coefficient 路面附着系数 1. High engine output torque may lead to high slip ratios of driven wheels and low utilization ofroad friction coefficients on a slippery road. 为了解决低附着路面上发动机输出力矩过大引起的驱动轮过度滑转及路面附着系数利用率低的问题,提出了牵引力控制系统中...