| 摘要 |
<p>A simulator for testing an anti-lock braking system (ABS) modulator is capable of easily simulating the yawing of a vehicle and/or the disproportionate concentration of vehicle weight arising from diverse road conditions. The simulator has wheels (16, 17) rotated by compressively contacting respective flywheels (20, 21). Flywheel driving means (19, 23, 25) transmits and controls the drive forces applied to the flywheels. Rotation-speed sensors (34, 35) are provided for monitoring the rotational speeds of the wheels (16, 17) and flywheels (20, 21). Pneumatic cylinders (14, 15) are installed to respective wheels (16, 17) for regulating the frictional force between each wheel and the associated flywheel. A braking system (38) is provided for applying braking forces to the wheels in which a modulator (11) to be tested is mounted. A pneumatic pressure generating circuit (40) supplies a predetermined pressure to the braking system and the pneumatic cylinders. A controller (30) is responsive to the rotation-speed sensors (34, 35) and is arranged to control the flywheel driving means to drive the flywheels such that they have identical or different rotational speed. The controller (30) also outputs a control signal to the pneumatic pressure generating circuit (40) whereby identical or different pneumatic pressures are applied to the pneumatic cylinders (14, 15) which are connected to the wheels and operate the braking system. <IMAGE></p> |
