58results about How to "Improved brake response" patented technology

A bicycle hydraulic brake actuation device includes a hydraulic master cylinder housing having a bore and a push rod guide surface, a master piston and a radial seal received in the bore, a push rod and a lever. The push rod is supported by the push rod guide surface for sliding movement within the hydraulic master cylinder housing. The push rod is configured to move the master piston and the radial seal from a neutral position to a braking position. The lever is pivotally attached to the housing for pivotal movement between an at rest position and a brake actuation position. The lever is also configured and arranged to move the push rod and the master piston from the neutral position toward the braking position as the lever is pivoted between the at rest position and the brake actuation position.

A bicycle hydraulic brake actuation device includes a hydraulic master cylinder housing having a bore, a master piston and a radial seal received in the bore a push rod and a lever. The push rod is configured to move the master piston and the radial seal between a neutral position and a braking position. The lever is pivotally attached to the housing for pivotal movement between an at rest position and a brake actuation position. The lever includes a contact surface configured and arranged to move the push rod as the lever is pivoted between the at rest position and the brake actuation position. Further, the push rod includes at least one roller configured to contact to the contact surface of the lever.

The invention relates to a pedal decoupling type and integrated type brake master cylinder assembly for measuring integrated pedal displacement, which is composed of an integrated type brake master cylinder and a high pressure oil source, wherein the integrated brake master cylinder is composed of a brake pedal, a pressure sensor, a pedal sensation simulator and a cut-out magnetic valve, a brake boosting piston, brake master cylinder pistons and reset springs; the high pressure oil outlet of the high pressure oil source is connected with the integrated brake master cylinder, so that stable and continuous brake energy is provided in the brake process. The brake master cylinder assembly has a compact structure, is high in integrated level, improves brake pedal sensation of a vehicle, has the active hydraulic boosting function in the situation of normal brake, has the passive hydraulic boosting function in the failure situation, efficiently ensures the brake safety of the vehicle, can be used for a brake-by-wire system of a conventional vehicle, and can be widely used for a brake system of a battery electric vehicle, a brake system of a hybrid powered vehicle and a fuel cell vehicle electro-hydraulic compound brake system.

An independent suspension (10) of a vehicle includes a strut (22) intended to carry a wheel (W), a damper (12) connected at a bottom end thereof to the strut (22), and a plurality of arms (14, 24) connected to a body (B) of the vehicle and the strut (22). A hinge device (30; 34) is interposed between the damper (12) and strut (22) to allow the damper (12) and strut (22) to rotate relative to each other about an axis of articulation (H) that is oriented to form an acute angle with a horizontal. A torsional stiffness control device (32; 34; 34, 70) is interposed between the damper (12) and strut (22) to control torsional stiffness of an articulated connection between the damper (12) and strut (22) about the axis of articulation (H).

The invention discloses a vehicle composite braking control method, device and system, as well as a vehicle composite braking controller. The method comprises the following steps: calculating to determine a total braking force needed by a vehicle, and calculating to determine exerted braking forces needed by various braking modes, respectively distributing the braking forces to the corresponding controller, and realizing vehicle braking by the controller in response to the distributed output braking forces. The method, device and system, as well as the controller are capable of solving problems that in the prior art, braking force response is slow, the efficiency is low and the reliability is poor, and have the advantages of better braking control efficiency, better reliability and the like.

The invention discloses an integrated sensing-actuation-energy recovery device and a brake system. The integrated sensing-actuation-energy recovery device comprises a rotor and a stator, which are installed coaxially. More than two piezoelectric components are uniformly installed on the inner side of the stator. The piezoelectric components deform towards the central axis of the rotor. More than two raised contacts are uniformly arranged on the outer surface of the rotor. When the piezoelectric components elongate, the raised contacts on the outer surface of the rotor rub against and collide with the piezoelectric components. The device can achieve the functions of a sensor, an actuator and an energy recoverer in a compact space. On the basis, a variety of integrated function devices applied to different electromechanical systems can be developed. The brake-by-wire system provided by the invention can achieve sensing and energy recovery functions at the same time, and has a good application prospect in the fields of new energy vehicles and intelligent driving vehicles.

The invention discloses a drum brake device for a small aircraft and a working method. The brake device comprises a base and two brake shoes installed on the base through a floating support. A drivingmechanism used for driving the two brake shoes to be away from each other is installed between the two brake shoes, the driving mechanism comprises an amplifying mechanism, and the amplifying mechanism comprises a displacement input end, a displacement output end used for driving the two brake shoes and a piezoelectric stacking assembly used for driving the displacement input end. The brake device outputs a displacement to generate a required brake force after electric signals are applied to two ends of the piezoelectric stacking assembly, weight of the aircraft is reduced, brake efficiency is improved, a corresponding speed of the piezoelectric stacking assembly is higher than that of an electro-hydraulic actuating mechanism, a defect that a traditional drum-type brake system is slow inresponse is overcome, a brake reaction is improved, and the device can be applied to small aircrafts with quite strict limitation on a size and the weight of the brake device.

The invention relates to a brake with an auxiliary braking function. The brake comprises a brake disc, a left friction plate, a right friction plate, a caliper assembly, a brake piston, a fixing bracket, an electromagnetic coil set, an electromagnetic chuck assembly, a magnetorheological fluid brake, a brake pump shell, a first spring, an oil storage chamber, a first piston, a limiting check ring, a second spring, a second piston, a brake pedal, an angle sensor, a three-position three-way solenoid valve, an energy accumulator, a wheel speed sensor and a controller. The angle sensor, the wheel speed sensor, the electromagnetic coil set, the electromagnetic chuck assembly and the three-position three-way solenoid valve are all electrically connected with the controller. According to the brake, the magnetorheological fluid brake is adopted as auxiliary brake of a conventional hydraulic brake, not only can the brake response speed be increased, but also the loss of friction elements is reduced; hydraulic braking and magnetofluid adjusting braking are combined, and multi-stage braking can be simply and efficiently achieved; and the brake is of great significance in braking research of the disc brake.