Elastic rubber belt energy storage type engine start-stop system and working method thereof

Abstract

The invention discloses an elastic rubber belt energy storage type engine start-stop system and its working method, which comprises an engine, an energy storage conversion unit and a double clutch transmission box. In the process of recovering braking energy, the braking deceleration motion of the car is converted into the rotation motion of the ball screw of the energy storage conversion unit through the transmission of the dual clutch transmission box, and the stretching elastic rubber belt is converted into elastic potential energy; In the process of braking energy, the elastic potential energy recovered by the elastic rubber belt of the energy storage conversion unit is converted into the rotational motion of the ball screw, and through the transmission of the double clutch transmission box, the vehicle is driven to accelerate and the engine is started to realize the braking energy. regeneration. The invention has the advantages of compact structure, high energy conversion rate, reliable performance and the like.

Description

technical field [0001] The invention relates to an elastic rubber belt energy storage type engine start-stop system and its working method. Background technique [0002] In order to make full use of the braking energy of the vehicle, three braking energy recovery methods are usually used: [0003] The first braking energy recovery method is to convert the kinetic energy of the vehicle into electrical energy through a generator and store it. The devices for storing electrical energy mainly include batteries and supercapacitors, both of which need to convert mechanical energy into electrical energy storage through a generator, which has the disadvantages of low energy conversion efficiency and low braking energy recovery and utilization rate. [0004] The second braking energy recovery method is to convert the kinetic energy of the vehicle into hydraulic energy and pneumatic energy and store them in the hydraulic accumulator through hydraulic pumps, motors and other secondary...

AI Technical Summary

Problems solved by technology

The devices that store electrical energy mainly include batteries, supercapacitors, etc., both of which need to convert mechanical energy into electrical energy storage through a generator, which has disadvantages such as low energy conversion efficiency and low braking energy recovery utilization rate.

[0004] The second braking energy recovery method is to convert the kinetic energy of the vehicle into hydraulic energy and pneumatic energy and store them in the hydraulic accumulator through hydraulic pumps, motors and other secondary components, but there are problems such as low energy conversion rate, low energy density, and high cost. defect

[0005] The third braking energy recovery method is to directly convert and store the kinetic energy of the rotating parts into kinetic energy flywheel energy storage. Since energy conversion is not performed through secondary components, the energy conversion efficiency is high. This energy recovery method has high costs and technical difficulties. large, immature

[0006] On September 12, 2012, the Chinese patent announced the rubber belt accumulator patent with the application number CN201210133635.X, and on October 30, 2013, the Chinese patent announced the elastic rubber belt accumulator with the application number CN201320242319.6 Patent for braking energy regeneration transmission device of electric vehicles, on February 26, 2014, China Patent published the patent of application number CN201310504549. On the 1st, the Chinese patent announced the patent of the braking energy regeneration transmission device of the elastic rubber belt accumulator type loader with the application number CN201310164669.X; in the above-mentioned existing patented technologies, the braking energy regeneration transmission device winds the elastic rubber belt On the drum, the braking energy is regenerated through the stretching and contraction of the rubber belt, which has the disadvantages of large volume, insufficient space for arrangement on the car, and inconvenient loading and use.

On August 14, 2013, the Chinese patent published the patent for the potential energy recovery device of the elastic rubber belt accumulator type loader arm with the application number CN201310164903.9 and the compression spring accumulator type loader arm with the application number CN201310165081.6 Potential energy recovery and regeneration device patent, which uses the stretching and contraction of the elastic rubber belt or compression spring to recover the potential energy of the loader arm, but this type of accumulator cannot realize the recovery and utilization of vehicle kinetic energy

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