Chassis dynamometer

A motorized chassis dynamometer machine, comprising

• a fixed frame assembly;
• a moveable frame assembly;
• at least one roller assembly mounted on each of the fixed frame assembly and the moveable frame assembly;
• at least one motor assembly connected to each roller assembly for driving the roller assembly;
• at least one loading dynamometer assembly capable of measuring power applied to each roller assembly;
• at least one motor controller capable of controlling each motor assembly;
• at least one dynamometer controller capable of controlling each dynamometer assembly;
• and
• a controller for controlling and manipulating each roller assembly, each motor controller and each dynamometer controller;
• wherein the motor assembly is only operable for driving each roller assembly and the dynamometer assembly is only operable for loading each roller assembly and not operable for driving each roller assembly.

A motorized chassis dynamometer machine, comprising:

• a frame assembly;
• at least one roller assembly mounted to the frame assembly;
• at least one motor assembly connected to each roller assembly for driven the roller assembly;
• and
• at least one loading dynamometer assembly capable of measuring power applied to each roller assembly;
• a torque sensor for each motor assembly and each dynamometer assembly whereby measurement of torque reaction used to drive the roller is independently measured for each roller assembly;
• at least one motor controller capable of controlling each dynamometer assembly;
• and
• a controller for receiving output from the torque sensor and controlling and manipulating each roller assembly, each motor controller and each dynamometer controller;
• wherein the motor assembly is one operable for driving each roller assembly and the dynamometer assembly is only operable for loading each roller assembly and not operable for driving each roller assembly.