The invention discloses a self-adaptive riding
speed control system and method, and relates to the technical field of
vehicle control, the
system collects motion state data of a riding vehicle in real time through a sensor group installed on the riding vehicle, and after preprocessing, a vehicle attitude
data set and a riding condition
data set are formed; the method comprises the following steps: performing gradient state evaluation by calculating a gradient trend index slo, performing pedaling frequency stability analysis when the evaluation is about to enter an uphill stage and a downhill stage, calculating a pedaling frequency
stability index wca through a riding condition
data set, and then combining the pedaling frequency
stability index wca with the gradient trend index slo to construct a comprehensive tooth ratio
stability index Gopt to perform comprehensive riding stability evaluation. Therefore, the rationality of tooth ratio adjustment is judged, a tooth ratio switching instruction of the front disc and the rear
flywheel is sent out, self-adaptive adjustment and control of the tooth ratio under the stable states of different gradients and different pedaling frequencies are achieved, the power matching and energy utilization efficiency in the riding process is effectively improved, the load of a rider is relieved, and the riding stability is enhanced.