The energy efficient utilization of electric vehicles is the key to exert its energy saving and environmental protection. The key part of electric vehicle is power battery, and the energy of power battery is the important factor to decide the driving range of electric vehicle. However, the power battery technology is still the bottleneck of the development of electric vehicles, failed to make a breakthrough, the continued mileage of electric vehicles can not meet the needs of users. Some studies show that in the city driving cycle, there are about 50% or more of the driving energy lost in the braking process, the suburban conditions also have at least 20% of the driving energy lost in the braking process. Therefore, the energy recovery of the brake is an effective measure to improve the energy efficiency of the automobile, and can not be substituted for the energy saving and environment protection of the automobile. If the kinetic energy of the vehicle is converted into electricity, the battery back to the revenue battery, rather than the waste of friction, which is undoubtedly equivalent to increase the capacity of the battery. Under the existing technical conditions, it has great significance to improve the performance of the electric vehicle driving range. Generally speaking, in the battery charging efficiency was 100%, the efficiency of the motor, brake feedback efficiency is 50%, total vehicle consumption 50% of the energy used to set conditions for the kinetic energy of a vehicle, based on energy conservation and analytical calculated: regenerative braking energy recovery, improve vehicle mileage of up to 33%.
Braking energy recovery could improve the vehicle braking performance, on the other hand to improve the energy efficiency of new energy vehicles, will be in the future new energy automotive standard technology. Especially in the electric vehicle and hybrid electric vehicle which have the power battery and the drive motor, the introduction of the energy recycling technology will be a trend.
Reference:
1. Flybrid Systems LLP (2010-09-10). "Flybrid Systems". Flybrid Systems. Retrieved
2. "Bosch Developing Modular KERS Systems for Range of Motorsport Applications". Green Car Congress.
1. Flybrid Systems LLP (2010-09-10). "Flybrid Systems". Flybrid Systems. Retrieved
2. "Bosch Developing Modular KERS Systems for Range of Motorsport Applications". Green Car Congress.