Method and device for passive electric assist bicycle based on energy recovery technology

Abstract

The invention relates to a passive electric assisting method and device of a bicycle based on an energy recycling technology. The passive assisting method and device aim to overcome the defect that comfort and energy efficiency of the existing bicycle are affected because the bicycle is not assisted when climbing. A system is formed by a motor / generator, an energy storage element with proper capacity, a relevant sensor and a relevant controller according to certain control strategies to efficiently recycle braking energy and overspeed energy in the running process of the bicycle; in the climbing process, the recycled energy is released through a motor drive system by the system to assist in driving the bicycle. According to the scheme, the original design intention of the bicycle is reserved on the premise that external charging systems are not used; the body building and short-distance outgoing purposes are achieved; riding energy efficiency of a rider can be improved, excessive consumption of physical power of the rider can be reduced, complex control devices and control modes for a control system are not needed compared with traditional bicycles, and the implementation cost is low.

Description

technical field [0001] The invention relates to a passive electric assist bicycle method and device based on energy recovery technology. Background technique [0002] In the known technical field, bicycle is not only an effective tool for people to exercise and short-distance travel, but also an effective way to reduce urban traffic congestion and vehicle exhaust pollution, but it has many problems that restrict its use, the most important of which is The reason is that it does not have a fully automatic control booster system, let alone a passive fully automatic booster system, which makes people need a lot of physical exertion when climbing a slope, wastes precious physical energy, and reduces riding comfort and rideability. distance. [0003] At present, there are some electric power-assisted bicycles on the market, which can provide power assist while riding, but they need an external energy input system (charging system) to supplement the energy consumption of the syst...

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Problems solved by technology

[0002] In the known technical field, bicycle is not only an effective tool for people to exercise and short-distance travel, but also an effective way to reduce urban traffic congestion and vehicle exhaust pollution, but it has many problems that restrict its use, the most important of which is The reason is that it does not have a fully automatic control booster system, let alone a passive fully automatic booster system, which makes people need a lot of physical exertion when climbing a slope, wastes precious physical energy, and reduces riding comfort and rideability. the distance

[0003] At present, there are some electric power-assisted bicycles on the market, which can provide power assistance when riding, but they need an external energy input system (charging system) to supplement the energy consumption of the system, and the system is almost designed according to the system of electric bicycles, retaining Large energy storage so that the rider can use it to drive long distances, which results in a relatively high system cost, and the fact that the rider relies on it to drive instead of riding himself, deprives the bike of its exercise function, and, It also requires some special control devices to achieve related operations to achieve related power assistance. The structure is complicated and has violated the original intention of bicycle design.

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