Hydraulic Brake Pedal Decoupling for Automated Driving Override

The patent introduces a memory element as an intermediary component in the hydraulic transmission system between the brake pedal and wheel brake. This memory element temporarily stores displaced transmission medium when the brake pedal is actuated, preventing direct immediate transmission of braking force to the wheel brake. The control unit can decide whether to release the stored medium based on whether automated control is active, thus mediating between driver input and actual brake application to prevent accidental disruption while maintaining safety.

The memory element acts as a cushioning buffer in the hydraulic transmission system. When the brake pedal is actuated, the displaced transmission medium is temporarily stored in the memory element rather than being immediately transmitted to the wheel brake. This creates a time delay and pressure buffer that prevents sudden, forceful pedal movement that could trap the driver's foot or cause the pedal to be unintentionally blocked by objects, while still allowing effective brake application when needed.

The system dynamically adjusts the coupling between brake pedal and wheel brake based on the operational mode. When automated control is active, the memory element stores displaced transmission medium and prevents direct transmission, providing protection against accidental activation. When automated control is deactivated or in emergency situations, the control unit releases the stored medium, allowing full driver intervention. This dynamic switching between coupled and decoupled states maintains both safety and adaptability.