| 摘要 |
<p>A vehicle braking system comprising an electro-hydraulic braking means of the type which operates normally in a brake-by-wire mode wherein hydraulic pressure is applied to braking devices at the vehicle wheels (18a-d) in proportion to the driver's braking demand as sensed electronically at a brake pedal (10), and which, if the brake-by-wire mode should fail, operates in a push-through mode wherein hydraulic pressure is applied to the braking devices at the vehicle wheels (18) by way of a master cylinder (34) coupled mechanically to the brake pedal (10), and an electric parking braking means for enabling the braking devices to be actuated for parking braking purposes. For supplementing the push-through braking provided by the electro-hydraulic braking means in the event that the brake-by-wire mode has failed, it is arranged that the operation of the foot pedal (10) by the driver also causes operation of the electric parking braking.</p> |
