| Summary: | 碩士 === 南台科技大學 === 機械工程系 === 98 === n this research, a design of parallel hybrid bicycle is proposed, its power source includes a brushless DC wheel-motor and a two-stroke engine. The throttle position of engine is controlled by fuzzy control method. First, construct the look-up table based on the fuzzy rules, use error speed and change of error speed as the inputs of fuzzy controller, and achieve the throttle position from the look-up table so as to control the engine speed. When the hybrid bicycle is starting, the wheel motor runs until the pre-assigned speed reaches, then control the throttle position to control the engine speed. This procedure will make combustion of fuel more completely and improves the operation efficiency of engine, to achieve energy savings and reduce exhaust pollution.
The experiment results indicate that using fuzzy control is better than using proportional control in average speed error and fuel consumption in free load condition, however, the average speed error and steady-state time are also improved in operating condition.
|
|---|
