Energy recovery system and method for air suspension

Abstract

The invention provides an energy recycling system and method for an air suspension. The energy recycling system comprises an air spring shock absorber, a pneumatic actuator, a detection mechanism, a high-pressure storage tank, an air compressor, a low-pressure storage tank, a pneumatic motor, a power generation device and an electric control unit (ECU). An air suspension system comprises the air spring shock absorber provided with a main air chamber and an auxiliary air chamber. A one-way valve is arranged at the joint of the main air chamber and the auxiliary air chamber. In the vibration process, the air pressure difference is generated between the main air chamber and the auxiliary air chamber through the one-way valve, gas flows to a power mechanism from the main air chamber, the power mechanism drives the power generation device to generate power, finally, the high-pressure airflow returns to the auxiliary air chamber of an air spring again, and therefore rigidity and damping of the air spring are ensured, and meanwhile energy consumed during vibration of a vehicle is recycled. When the height of a vehicle body is adjusted, an electromagnetic valve is controlled, the high-pressure gas is guided to flow through the power mechanism for power generation, and on the basis that the riding comfort is ensured, energy recycling efficiency is further improved.

Description

technical field [0001] The invention belongs to the technical field of automobile energy recovery, and in particular relates to an air suspension energy recovery system and a method thereof. Background technique [0002] With the deterioration of the environment and the shortage of energy, better energy saving and emission reduction on the basis of ensuring the original performance of the car has become the focus of the automotive industry. Although braking and vibration energy recovery technologies have developed, innovations in energy-saving technologies Breakthroughs and applications are still limited. [0003] The car will consume a lot of energy due to the vibration of the car during driving. Some studies have shown that the energy consumed by the vibration is far greater than the energy consumed by the car brake. If it can be effectively recovered, the cruising range of the electric car can be increased by 20%. ~30%, so if the energy consumed by the vibration of the c...

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Problems solved by technology

[0005] Most of the existing technologies use hydraulic shock absorbers for energy recovery. The patent application number is 201410615928.0 "Vibration Energy Recovery Device". This invention includes two parts: a vibration receiving device and an energy feeding device, which can recover both The energy of movement in one direction, and realize the damping effect; but this patent can only be applied to the hydraulic shock absorber, because the height cannot be adjusted, so the energy during the height adjustment cannot be recovered.

The patent application number is 201410721256.1 "A Vehicle Vibration Energy Recovery System and Control Method". The device can only be used for hydraulic shock absorbers, and energy recovery is performed during vibration, but the height cannot be adjusted, so the energy during height adjustment cannot be recovered, and the energy recovery efficiency is low

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