Driving wheel surface output specified power loading detection method
A driving wheel, rated power technology, applied in the direction of measuring the traction/propulsion power of the vehicle, measuring device, vehicle testing, etc., can solve the problem of the large difference between the drive axle load and the detected vehicle speed, the uniformity and comparability of fuel consumption, etc. question
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[0017] Take a diesel vehicle as an example to illustrate the specific implementation of the detection method for the specified power output on the surface of the drive wheel. The parameters of the diesel vehicle: the rated power of the engine is 169kW, radial tires, and the specified power coefficient δe=δm at the rated power point and the maximum torque point =0.5, the power correction factor a is 0.986, the maximum torque is 800N·m, the maximum torque speed is 1400r / min, Pm=800×1400 / 9549=117.3kW (or Pm=0.715×169=120.8, error 3%), The drive shaft weighs 51600N.
[0018] a. First determine the vehicle speed Ve at the rated power point or the vehicle speed Vm at the maximum torque point, which can be obtained by calculating the technical parameters of the vehicle transmission ratio, wheel radius, etc., or through the calibration method of measuring the engine speed and vehicle speed, or by It is obtained from the statistics of the same model series, and Ve=Φ×Va can also be calc...
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