Regenerative braking actuator apparatus
AssigneeHyundai Mobis Co., Ltd.
InventorJONGSUNG KIM
Life of this patent
Estimating the term…
Abstract
An actuator apparatus includes a booster creating an infinite boost ratio while a plunger valve does not contact with a reaction disc, and an oil reservoir and a pedal simulator unit forming a hydraulic circuit to follow hydraulic hysteresis characteristics. Therefore, it is possible to achieve insensibility of pedal changes transmitted from a master cylinder, minimize changes in pedal feel according to changes of pedal effort correspondingly generated, while blocking vibration transmitted to the pedal when achieving regenerative braking, and provide pedal feel following or simulating the hydraulic hysteresis characteristics.
Claims11
A braking apparatus comprising:
- a brake pedal;
- a booster that is coupled with the brake pedal, comprises a reaction disc and a plunger valve provided in a valve body, and is configured to maintain non-contact between the plunger valve and the reaction disc to create an infinite boost ratio;
- a pedal simulator that is coupled with the brake pedal, contains oil, and has one or more springs;
- a first control valve that is hydraulically connected to the pedal simulator, and is configured to selectively allow the oil to flow out of the pedal simulator;
- and
- an ECU that is configured to control opening of the first control valve to discharge the oil in the pedal simulator when the booster fails.
A braking apparatus comprising:
- a brake pedal;
- an ECU that is configured to detect an amount of pedal effort of the brake pedal using a sensor;
- a booster that comprises a reaction disc and a plunger provided in a valve body, and is configured to maintain non-contact between the plunger valve and a reaction disc to create an infinite boost ratio;
- a booster operating unit that has a motor driven by a signal transmitted from the ECU, the signal being associated with the amount of pedal effort of the brake pedal, and a converter configured to convert rotation of the motor to linear movement so as to move the plunger valve;
- a pedal simulator that is coupled with the brake pedal, contains oil, and has one or more springs;
- and
- a hydraulic circuit that is configured to operate a master cylinder, and is further configured to create hydraulic pressure for pushing an operation rod by making oil to flow out of the pedal simulator and flow into the booster operating unit.
Dependencies are inferred from the claim text.