Motor home air suspension control method and system

The invention relates to a vehicle suspension technology, and discloses a motor home air suspension control method and system, and the method comprises the steps: pressing a control panel parking key, enabling an ECU to control a front axle solenoid valve to deflate a front suspension air bag to the minimum, enabling the ECU to control a rear axle solenoid valve to deflate a rear suspension air bag to the minimum, enabling the ECU to control the rear axle solenoid valve to deflate a rear suspension air bag to the minimum by 50mm, enabling the working air pressure of the rear axle air bag to be reduced from 6bar to 5-4bar, and enabling the working air pressure of the rear axle air bag to be reduced from 6bar to 5-4bar; meanwhile, the ECU controls the supporting leg electromagnetic valve to pressurize the air cylinder (rodless cavity) to the maximum pressure, and the supporting legs stretch and make contact with the ground. And then the air pressure of the rear suspension airbag is reduced slightly, and the sup