BRAKE PEDAL [(US)]
BRAKE PEDAL [(US)]
SM2334022
id0411002002xa
Purpose/Function
• An anti-intrusion brake pedal has been adopted to the brake pedal to provide for a measure of safety in the event of an accident.
• The anti-intrusion brake pedal mechanism reduces the amount of rearward brake pedal thrust in a frontal collision and the impact to the lower extremities of the driver.
Construction
• The anti-intrusion brake pedal mechanism is structured on the brake pedal and consists of the following parts.
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― Pedal arm― Lever― Pin A― Pin B― Pin C― Bracket
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Operation
During normal braking
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• When the brake pedal is depressed, the pedal arm rotates at the pin A fulcrum point, and the pedal depression force is transmitted to the fork of the power brake unit.• This pedal depression force pushes in the fork to operate the brakes.
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During anti-intrusion operation
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• In a frontal collision, the brake pedal is forced rearward by the movement of the dashboard.• In response to this, force in the direction of X is applied to the brake pedal lever because the dashboard member and brake pedal lever interfere.• With the addition of force in the direction of X, pin C releases from the lever, and the lever rotates around the pin B fulcrum point.• When the lever rotates, it obstructs pin A at the fulcrum point of the pedal arm.• If the pedal rotates further, pin A separates from the bracket (notch), and the pedal is freed.• By freeing the pedal arm, the force applied to the lower extremities is reduced.
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