Breadcrumb
Heavy-duty Chassis Dynamometer Laboratory
The UCR chassis dyno is a very modern design targeted around quick inertial load setting with quick response using a balanced design. This provides important advantages over older dynamometer testing systems, such as dynamometers that rely on wheel hub connections. UCR chassis dynamometer was designed around unique inertial loading techniques.
hd chassis
To optimize the loading and reduce AC motor torque response, the dyno was designed with 45,000 lbs of base inertial. This allows the motors to trim up the load for > 45,000 lb inertial and trim down for less than 45,000 lb inertia. The benefit is infinite inertia options and very fast response at very slow speeds. Other chassis dynos have fixed low end inertias of 15,000 lbs and try to electrically absorb inertia with AC motors. This is difficult at low motor speeds (roll speed or vehicle speeds). Other dynos utilize fixed inertial setting with plates, but this causes a problem with transmission losses, response through gear boxes, the inability to get an exact inertial loading, and difficulty in varying the inertial.
Publications

 

Let us help you with your search