Abstract: The present disclosure relates to a travel stability system, a backhoe loader and a control method. The travel stability system includes: a hydraulic actuator; a first hydraulic oil source, operatively connected with the hydraulic actuator, and configured to provide pressure oil to the hydraulic actuator; an energy storage element operatively connected with a first oil supply path between the first hydraulic oil source and the hydraulic actuator; and a controller configured to compare an oil pressure of the hydraulic actuator with an oil pressure of the energy storage element after the travel stability system is turned on, and achieve a balance between the oil pressure of the energy storage element and the oil pressure of the hydraulic actuator before the energy storage element is accessed to the first oil supply path.

Abstract: This disclosure provides an engineering vehicle and an air conditioning system thereof beneficial to improve comfortability of drivers. The air conditioning system includes: an air conditioner body, including a shell with first and second air outlet; a first air supply pipeline, a first end of the first air supply pipeline being connected to the first air outlet; first air support port(s), arranged at an inner front end of a cab of the engineering vehicle and connected to a second end of the first air supply pipeline; a second air supply pipeline, a first end of the second air supply pipeline being connected to the second air outlet; second air supply port(s), arranged at an inner rear end of the cab and connected to a second end of the second air supply pipeline; and a flow distribution device including a flow dividing portion located in the shell.