Method for calculating nonlinear average acceleration on vehicle terminal

The invention discloses a method for calculating nonlinear average acceleration on a vehicle terminal. The method comprises the following steps: carrying out approximate decomposition on a definite integral of an average acceleration calculation formula by using a Newton-Cortes formula; multiplying a transient acceleration value which is sampled through an acceleration sensor of the vehicle terminal and which is stored in a loop buffer area by a corresponding Cortes coefficient from the head of a loop queue to the tail of the loop queue; accumulating to calculate the sum; and finally dividing by 90 to obtain an average acceleration (as shown in the specification) between t and t+delta. The method provided by the invention is simple and high in speed in the calculation process, and has higher measurement accuracy and reliability.