New energy bus and speed control method and system thereof

The invention discloses a new energy bus and a speed control method and system thereof, which consider the influence of a starting working condition, a driving working condition and a braking working condition, set different credibility factors, and solve the key problem that the longitudinal vehicle speed cannot be accurately obtained under an extreme working condition by adaptively adjusting a vehicle speed estimator through the credibility factors. The method is small in calculation amount and high in accuracy. 本发明公开了一种新能源客车及其速度控制方法、系统，考虑起步工况、驱动工况、制动工况的影响，设定不同的可信度因子，通过该可信度因子，自适应调整车速估计器，解决了极限工况下，无法准确获取纵向车速的关键问题。本发明不仅计算量小，而且准确度高。