An air management system for a vehicle having a supply tank, a system controller integrated with the supply tank, a first pneumatic circuit pneumatically connected to the system controller, and a second pneumatic circuit pneumatically connected to the system controller. The system controller adjusts independently air pressure of the first pneumatic circuit and the second pneumatic circuit without establishing pneumatic communication between the first and second pneumatic circuits. The system controller establishes pneumatic communication between the first and second pneumatic circuits when the system controller is not adjusting independently the air pressure of the first pneumatic circuit and the second pneumatic circuit.

A suspension control system includes: a suspension that couples a sprung structure and an unsprung structure of a vehicle; a stabilizer; and a control unit configured to estimate a stroke speed, wherein the vehicle includes first wheels and second wheels, the suspension includes first suspensions provided for the first wheels and second suspensions provided for the second wheels, the stabilizer includes a first stabilizer bar that couples the first suspensions, the control unit includes: indirect stabilizer force calculation unit configured to calculate an indirect stabilizer force received by each of the second suspensions in conjunction with a posture change of the sprung structure; sum calculation unit configured to calculate a sum of forces acting on each of the second suspensions; and an observer configured to receive the sum and output an estimation value of a stroke speed of each of the second suspensions.

The present disclosure discloses an agitator truck, and the agitator truck includes a frame; a first axle assembly; a second axle assembly, where the second axle assembly and the first axle assembly are disposed along a front-rear direction in a spaced manner, the second axle assembly includes two vehicle axle assemblies that are disposed along the front-rear direction in a spaced manner, each of the vehicle axle assemblies includes an axle case assembly, the axle case assembly includes an axle case component and two half axles, and the two half axles are located inside the axle case component; at least one of the two vehicle axle assemblies is an electric drive axle assembly, the electric drive axle assembly further includes an electric power assembly, the electric power assembly includes a power motor, a transmission, and a differential, the transmission has a transmission case, the power motor is fixed to the transmission case, the differential is supported on the transmission case, the differential is located inside the axle case component, and the transmission case is fixed onto the axle case component; and a suspension system, where each of the vehicle axle assemblies is connected to the frame through the suspension system. The agitator trunk according to the present disclosure high has a compact structure and integration degree and is environmental friendly.

An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The first pneumatic circuit includes a first leveling valve configured to adjust independently the height of a first side of the vehicle. The second pneumatic circuit includes a second leveling valve configured to adjust independently the height of a second side of the vehicle. The first and second leveling valves are configured to establish pneumatic communication between the first and second pneumatic circuits when the first leveling valve is not independently adjusting the height of the first side of the vehicle and the second leveling valve is not independently adjusting the height of the second side of the vehicle.

An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The first pneumatic circuit includes a first leveling valve configured to adjust independently the height of a first side of the vehicle. The second pneumatic circuit includes a second leveling valve configured to adjust independently the height of a second side of the vehicle. The first and second leveling valves are configured to establish pneumatic communication between the first and second pneumatic circuits when the first leveling valve is not independently adjusting the height of the first side of the vehicle and the second leveling valve is not independently adjusting the height of the second side of the vehicle.

An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The first pneumatic circuit includes a first leveling valve configured to adjust independently the height of a first side of the vehicle. The second pneumatic circuit includes a second leveling valve configured to adjust independently the height of a second side of the vehicle. The first and second leveling valves are configured to establish pneumatic communication between the first and second pneumatic circuits when the first leveling valve is not independently adjusting the height of the first side of the vehicle and the second leveling valve is not independently adjusting the height of the second side of the vehicle.

A suspension apparatus includes a first extension-side damping valve provided in the first flow path; a first contraction-side damping valve provided in the first flow path in parallel with the first extension-side damping valve; a second extension-side damping valve provided in the second flow path; a second contraction-side damping valve provided in the second flow path in parallel with the second extension-side damping valve; a first damping valve configured to impart resistance to the flow of fluid from the first flow path to the first accumulator; a first check valve disposed in parallel with the first damping valve; a second damping valve configured to impart resistance to the flow of fluid from the second flow path to the second accumulator; and a second check valve disposed in parallel with the second damping valve.

The present disclosure discloses an agitator truck, and the agitator truck includes a frame; a first axle assembly; a second axle assembly, where the second axle assembly and the first axle assembly are disposed along a front-rear direction in a spaced manner, the second axle assembly includes two vehicle axle assemblies that are disposed along the front-rear direction in a spaced manner, each of the vehicle axle assemblies includes an axle case assembly, the axle case assembly includes an axle case component and two half axles, and the two half axles are located inside the axle case component; at least one of the two vehicle axle assemblies is an electric drive axle assembly, the electric drive axle assembly further includes an electric power assembly, the electric power assembly includes a power motor, a transmission, and a differential, the transmission has a transmission case, the power motor is fixed to the transmission case, the differential is supported on the transmission case, the differential is located inside the axle case component, and the transmission case is fixed onto the axle case component; and a suspension system, where each of the vehicle axle assemblies is connected to the frame through the suspension system. The agitator trunk according to the present disclosure high has a compact structure and integration degree and is environmental friendly.

An air management system for a vehicle having a first pneumatic circuit and a second pneumatic circuit, in which the first and second pneumatic circuits are pneumatically connected in a neutral position via a cross-flow mechanism. The first pneumatic circuit includes a first leveling valve configured to adjust independently the height of a first side of the vehicle. The second pneumatic circuit includes a second leveling valve configured to adjust independently the height of a second side of the vehicle. The first and second leveling valves are configured to establish pneumatic communication between the first and second pneumatic circuits when the first leveling valve is not independently adjusting the height of the first side of the vehicle and the second leveling valve is not independently adjusting the height of the second side of the vehicle.

A wheel suspension unit is disclosed. The wheel suspension unit includes a stabilizer having a first end and a second end, a wheel suspension element, and a piston-cylinder unit. The piston-cylinder unit connects an end of the stabilizer to the wheel suspension element. The piston-cylinder unit is a roll damper. The roll damper includes a plurality of roll damping valves arranged in a piston of the roll damper. Each of the plurality of roll damping valves has a non-return valve and an adjustable throttle valve. The non-return valve is arranged in series with the adjustable throttle valve.