Arvin Meritor Technology, LLC

Altair Engineering, Inc.

Techco Corporation

Jeffrey Marshall Lloyd

Wesley J Blanchard

H Dieter Featherman

Michael Baker

Edward H Phillips

James Keane

Everett A Hall

Ken Flory

Kranti Kiran Manga

Michael Marcetti

An air suspension includes a crossover valve in fluid communication with a manifold, a first set of springs in fluid communication with the manifold through a first set of valves, and a second set of springs in fluid communication with the manifold through a second set of valves. The crossover valve is movable between an open position to allow fluid communication to each of the first and the second sets of springs and a closed position that separates the first set of springs from the second set of springs.

Integrated crossover valve

An air braking system for a vehicle blends regenerative and foundation braking during low deceleration conditions in an effective and controlled manner. The braking system also includes a mechanical override that bypasses system electronics in response to an aggressive brake request such that treadle circuit pressure is sent directly to a brake relay circuit to actuate vehicle brakes.

Mechanical bypass valve for regenerative air brake module

A connector for a tire inflation system includes a body with an air inlet receiving pressurized air from an air supply and an air outlet to communicate the pressurized air to at least one tire. The body is to be connected to a rotating wheel component and includes an internal cavity connecting the air inlet to the air outlet. A seal assembly is positioned within the internal cavity. A tube has a first end supported by the seal assembly and a second end that is to be coupled to a non-rotating axle component. The seal assembly and tube are rotatable relative to each other and seal assembly is rotatable relative to the body. The tube communicates pressurized air from the non-rotating axle component to the air inlet to inflate the tire as needed.

Rotating seal assembly for tire inflation system

Regenerative air brake module

A roll control system is provided that includes first and second dampers each having fluid. A pump fluidly interconnects the first and second dampers. A motor is connected to the pump. A controller is in communication with the motor. The controller is configured to command the motor to drive the pump and transfer fluid between the first and second actuators in a desired direction in response to a roll signal. The pump provides fluid from one of the first and second dampers to the other of the first and second dampers in response to being driven by the motor. The roll control system can be used on front and rear axles to provide improved overall stability for the vehicle. In one example, a common motor is used to drive first and second pumps, which are respectively associated with the front and rear axles.

Damper actuated active roll control

An air suspension includes first and second air spring assemblies that each include a piston airbag and a primary airbag. A first fluid connection connects one of a first piston airbag and a first primary airbag of the first air spring assembly to one of a second piston airbag and a second primary airbag of the second air spring assembly. A second fluid connection connects the other of the first piston airbag and the first primary airbag to the other of the second piston airbag and the second primary airbag. Air flow through the first and second fluid connections is passively controlled solely in response to road load inputs to reduce roll stiffness and improve articulation.

Cross-linked variable piston air suspension

An air suspension includes a plurality of air spring assemblies that each include a piston airbag and a primary airbag mounted over the piston airbag. The primary and piston airbags each have a variable volume that is controlled independently of the other for active suspension control. Each piston airbag includes a piston intake valve and a piston exhaust valve. Each primary airbag includes a control valve that is operable to supply and exhaust air from the corresponding primary airbag. The control valves and piston intake valves operate independently of each other. A compressor supplies air to a supply reservoir which is used to supply air to the primary and piston airbags. The compressor includes a bypass loop that directs exhausted air to a compressor inlet when the compressor is running.

Air supply system for active air suspension

A gerotor pump includes an outer rotor having a first toothed surface and lobes that extend inwards. An inner rotor is eccentrically aligned relative to the outer rotor and includes a second toothed surface and lobes that extend outwards. Planetary gears are located between the outer rotor and the inner rotor. Each planetary gear has a third toothed surface that intermeshes with the first toothed surface and the second toothed surface.

Gerotor pump

An air spring assembly is mounted to a shock absorber to form a strut assembly. The shock absorber includes an outer cylinder with an internal piston and piston rod mounted within the outer cylinder. The piston rod is mounted to a vehicle frame member and the outer cylinder is mounted to a vehicle wheel. The air spring assembly includes a flexible member and an air spring piston that is supported by the outer cylinder. One end of the air spring piston is crimped around the flexible member to form a sealed attachment interface between the outer cylinder and the flexible member.

Air spring assembly

A bicycle rack is provided for connection to a vehicle, and especially a bus for the transport of a bicycle. The bicycle rack has a frame pivotally connected to a bracket which is connectable to a front of a bus. A pair of elongate cradles traverse the frame of the rack. Each elongate cradle is capable of receiving a bicycle. Each elongate cradle includes a rear wheel cradle and a front wheel cradle. The front wheel cradle has a spring operated wheel lock. The wheel lock includes a rotatable armature which overlays and holds the front tire of the bicycle in a locked position. The armature is actuated by the weight of the front wheel or by the manual activation of an adjacent handle.

Bus bicycle rack having a spring operated wheel lock

A strut suspension can include a shock-absorber/spring assembly having a lower portion mountable at one end to an upper portion of the steering knuckle. A transverse link can be connectible to the steering knuckle at a location opposite from the shock-absorber/spring assembly. A rocker arm can be supportable for pivotal movement from the vehicle body and can be pivotally connectible to the shock-absorber/spring assembly from the steering knuckle. A push rod can be pivotally connectible to the rocker arm and can extend between the rocker arm and the transverse link. The upper end of the shock-absorber/spring assembly can be connected to either an inboard or outboard portion of the rocker arm, while an upper end of the push rod is connected to the other of the outboard or inboard portion of the rocker arm.

Strut suspension with pivoting rocker arm

An air spring assembly includes a primary airbag mounted to a piston air bag such that the piston airbag provides a rolling surface for the primary airbag. A change in the piston airbag pressure changes the effective rate of the primary air spring. A relatively small change in the piston airbag volume provides a change in the spring rate of air spring assembly as the diameter of the rolloff surface is selectively modified.

Dual airbag airspring

An air spring assembly is mounted to a shock absorber to form a strut assembly. The shock absorber includes an outer cylinder with a shock piston and piston rod mounted within the outer cylinder. The outer cylinder includes a shock mount that is attached to a vehicle wheel. The air spring assembly includes an upper mount, which is attached to a vehicle body member, and a lower mount that is attached to the outer cylinder. An air spring piston is mounted to the upper mount via a bearing assembly to permit relative rotation between the air spring piston and the vehicle body member. A flexible member extends from the lower mount to a lower end of the air spring piston. The piston rod is mounted at one end to the shock piston and at an opposite end to the air spring piston. An isolator is mounted between the piston rod and the air spring piston to minimize shock loads.

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Auburn Hills, MI, United States of America

Jeffrey Marshall Lloyd