Measuring and testing – Brake testing – Roller or belt wheel support
Reexamination Certificate
2005-03-01
2005-03-01
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Brake testing
Roller or belt wheel support
C073S862000
Reexamination Certificate
active
06860145
ABSTRACT:
A motorized chassis dynamometer machine. In one embodiment, the dynamometer machine includes a fixed frame assembly. At least one roller assembly is mounted on the fixed frame assembly. At least one independent motor assembly is connected to each roller assembly. The independent motor assembly is used for driving the roller assembly. At least one independent loading dynamometer assembly capable of measuring the vehicle input power at each roller assembly is coupled to each roller assembly. In a preferred embodiment, the dynamometer assembly is only operable for loading each independent roller assembly, while the motor assembly is operable for driving each independent roller assembly. The machine has at least one motor controller capable of controlling each independent motor assembly and at least one dynamometer controller capable of controlling each independent dynamometer assembly. Each roller assembly, motor controller and dynamometer controller are in turn controlled and manipulated by an overall controller. The dynamometer machine may further include a torque sensor for each motor assembly and each dynamometer assembly. The torque sensors are used to measure torque reaction, each torque sensor independently measuring torque for each of the roller assemblies.
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Bergst Allen B
Childers John R
Johnson Gregory
Petelinsek Alan D
Petelinsek John F
LaFollette Godfrey & Kahn
Lefkowitz Edward
Miller Takisha
Power Test, Inc.
Srivastava Sonali S.
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