CALCULATION OF REGENERATIVE ENERGY WHEN BRAKING OF HYBRID VEHICLES

Abstract

Currently, many countries in the world are facing the risk of fossil fuel depletion, in addition to environmental pollution and greenhouse effect caused by the automobile industry. To solve this problem, major automobile manufacturers in the world have implemented the conversion of the automobile industrial revolution to electric cars with the aim of using electric energy to serve the automobile industry, solving the problem of environmental resource depletion and emissions from cars into the environment. In the face of the current serious environmental pollution situation and the threat to human health and life. In this article, the author proposes a solution to replace fossil energy sources by equipping the car engine with two main energy sources: internal combustion engine and electric motor, also known as Hybrid engine, recovering renewable energy during engine braking through a kinetic energy converter into electricity that can charge the battery or provide load for the car. Regenerative braking energy recovery is calculated based on regenerative braking theory combined with simulink simulation, and tested to calculate regenerative braking or deceleration energy on a Toyota Prius II. The results show that with a vehicle mass of 1379kg, the initial speed is 72km/h, after using regenerative braking, the speed is reduced to 32km/h and the energy collected during braking is 221.3 KJ. From the results of theoretical calculations and experimental simulations, we can manufacture a regenerative braking system applicable to popular cars in circulation in our country.