Automobile lane changing trajectory planning and dynamic trajectory tracking control method
A trajectory tracking and trajectory planning technology, applied in non-electric variable control, two-dimensional position/lane control, vehicle position/route/altitude control, etc., can solve the uncertain collision risk of lane changing trajectory and insufficient change of the state of the preceding vehicle. And other issues
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[0020] Refer figure 1 The present invention proposes an automotive trip trajectory planning and dynamic trajectory tracking control method, which includes the following steps according to the road:
[0021] S1, planning the trajectory under the condition of a straight line or curved road; the specific steps are as follows:
[0022] S11, through radar or camera and other sensors, the front vehicle distance and vehicle speed information are obtained. When the renewal reference trajectory is planned, it is assumed that the front vehicle remains uniform, in order to avoid collision with the front car during the trifle, determine the controlled vehicle to start there. Minimum longitudinal safety distance between the front car safe The formula is:
[0023] S safe = Max {s f Ε v }
[0024] Among them, ε v Driving spacing for road regulations, s f For the longitudinal distance from the train in the trail time; in order to ensure the safety during the renewal, consider the dangerous sense ...
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