Active Suspension Jump Control Using Accumulator Energy Release
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Solution Overview
Problem
Existing vehicle suspension systems lack the capability to implement a vehicle jump function effectively, limiting their application scenarios and utilization.
Innovation Solution
An active suspension system that includes an accumulator and a shock absorber, which stores energy and releases it to drive the vehicle body to jump, ensuring the wheel leaves the ground with an upward movement velocity greater than 0, utilizing both the accumulator and shock absorber forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If an active suspension system is used to adjust vehicle body height according to road conditions, then the suspension can dynamically adapt to driving conditions, but the system lacks the capability to implement vehicle jump function
Solution Approach 1:
The accumulator stores energy in advance by compressing the spring during normal suspension operation. When a jump command is received, the pre-stored energy is rapidly released to provide the jump force, eliminating the need for additional power sources or complex control mechanisms.
Solution Approach 2:
The suspension system uses its own structural components (spring and accumulator) to generate jump force without requiring external power sources or additional actuators. The spring's elastic energy and the accumulator's stored energy work together to propel the vehicle body upward.
2Force
If energy is stored in the accumulator to enable vehicle jump, then sufficient jump force can be generated, but the energy storage and release process requires precise control timing
Solution Approach 1:
The accumulator continuously stores energy from the spring during normal suspension operation. When a jump command is received, the pre-stored energy is immediately released, eliminating delays associated with real-time energy generation or transfer.
Solution Approach 2:
The spring continuously compresses and releases during normal suspension operation, continuously charging the accumulator. This continuous energy accumulation ensures that when needed, maximum energy is available for instant release to generate jump force.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables the vehicle to jump by applying initial jump forces that allow the wheel to leave the ground, expanding the application scenarios of active suspensions and fully utilizing their potential.
Implementation Method 1
storing energy in the accumulator until energy stored in the accumulator reaches a specified first stored energy... controlling an active suspension to drive a vehicle body to jump, to release the first stored energy
Implementation Method 2
The shock absorber applies upward acting force to the vehicle body during a process of releasing the first stored energy by the accumulator
Data Source
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AI summary
Provided are an active suspension control method and apparatus, a system and a vehicle. The method includes: When receiving a jump instruction, storing energy in an accumulator until energy stored in the accumulator reaches a specified first stored energy; and when the energy stored in the accumulator reaches the first stored energy, controlling an active suspension to drive a vehicle body to jump, to release the first stored energy. Initial jump force of the vehicle body includes: first acting force that is applied by the accumulator and that corresponds to the first stored energy and second acting force applied by a shock absorber of the active suspension. The initial jump force enables an upward movement velocity of the vehicle body to be greater than 0 when a wheel leaves the ground.