11 results about "Brake control" patented technology

An electrically driven brake booster 1 includes an input member 4 disposed in operative association with a brake pedal 12, an output member 5 disposed in operative association with the master cylinder 6, and drive transmitting means 10 for translating a rotating motion of a motor 9 into a linear motion to be transmitted to the output member 5. The drive transmitting means 10 comprises a rack 23 formed on the output member 5, and pinions 21, 22 disposed in operative association with the motor 9 and in meshing engagement with the rack 23. Also, reaction transmitting means 8 which transmits a brake reaction to the input member 4 and the output member 5 at a given proportion is provided. In comparison to conventional drive transmitting means, the drive transmitting means 10 of the present invention has a simple construction, a reduced weight and a better transmission efficiency. The provision of reaction transmitting means allows a correct brake control to be achieved on the basis of a brake reaction.

The invention provides a pure electric automobile auxiliary control method based on a ramp sensor and a control system thereof and belongs to the technical field of pure electric automobile control. The technical scheme is that the pure electric automobile auxiliary control method based on the ramp sensor comprises vehicle ramp auxiliary control, vehicle ramp sliding control, vehicle downhill braking control and vehicle flat road braking control; the control system of the pure electric automobile auxiliary control method based on the ramp sensor comprises a vehicle control unit, the ramp sensor and a motor controller, wherein an output end of the ramp sensor is connected with a control end of the vehicle control unit; the motor controller is driven by the vehicle control unit; and the control end of the motor controller is electrically connected with a motor. The pure electric automobile auxiliary control method based on the ramp sensor has the beneficial effects that stable starting during hill starting can be realized to eliminate a slipping problem, motor energy can also be reasonably recovered to enhance the economic efficiency of the whole vehicle and prolong the driving rangeof the whole vehicle; and meanwhile, problems of rapid aging and high speed wearing caused by long-time working of a brake system during going down a long slope can be eliminated; and auxiliary braking can be realized.

For a vehicle having a brake system, a driver assistance system includes a detection system having at least one sensor configured to output measurement signals, and a control unit configured to receive at least one measurement signal, determine whether the vehicle is in a critical state based on measurement signal(s), and output an external brake request signal to a brake control device of the brake system for priming or biasing the brake system when the vehicle is determined to be in the critical state. The external brake request signal comprises an acceleration setpoint value signal having a higher acceleration setpoint value than a current actual acceleration value of the vehicle.

A brake controlling unit detects a brake actuation object based on images captured by a running environment recognizing unit and sets a target brake pre-pressure actuation distance based on a relative speed between the brake actuation object and a subject vehicle. When an actual distance between the subject vehicle and the brake actuation object reaches the target brake pre-pressure actuation distance, the brake controlling unit outputs to a brake driving unit a driving signal that generates a brake pre-pressure to make the brake clearance of a brake minimal.

The invention belongs to the technical field of traffic safety, and particularly relates to an automatic emergency brake control method. However, a current automatic brake control technology cannot give consideration to both early warning time and a safety distance. The invention provides the automatic emergency brake control method. The method comprises the steps of formulating an automatic emergency brake control strategy, wherein the automatic emergency brake control strategy includes an automatic emergency brake control algorithm, a hierarchical control system and a braking force distribution sub-strategy; judging collision danger according to front target motion information and own vehicle motion information, and giving early warning and braking operations; adopting a collision time algorithm in an early warning period, and adopting a safe distance algorithm in a to-be-braked period; sequentially transmitting control signals to a first-layer controller and a second-layer controller so that a control effect and expectation are kept consistent as much as possible; and generating a braking force through the braking force distribution sub-strategy so that automatic braking is achieved. And the safety is ensured, and meanwhile, over-urgent braking is avoided.

The present disclosure discloses a brake control system for use in a vehicle and a control method thereof. A brake control system may be configured to include a brake pad for braking the vehicle by pressing a brake disc provided in the vehicle, a measuring apparatus for measuring the vehicle speed, the wear level of the brake pad, the traveling distance of the vehicle, the braking distance of the vehicle, and the braking pressure applied by the brake pad to the brake disc at braking, and a controller connected with the measuring apparatus and for controlling an operation of the brake pad. The controller may compare an initial braking distance, which is a design value of the braking distance before initial traveling of the vehicle, with a current braking distance, which is a braking distance after traveling of the vehicle during a certain duration, and increase the braking pressure of the brake pad in response to the amount of increase in the braking distance, when the amount of increase in the braking distance, which is a difference value between the current braking distance and the initial braking distance, is out of a setting range. The brake control system may transmit and receive a wireless signal in a mobile communication network constructed according to 5G (Generation) communication.

An ABS hydraulic unit (100) where a hydraulic circuit (1) is connected to a master cylinder for discharging a brake fluid at a first connection end (A) thereof and is connected to a hydraulic brake at a second connection end (B) thereof, and makes the hydraulic brake perform braking, a pump (12) operated by a motor, a closing valve (13), a release valve (14) and an accumulator (15) are provided in the hydraulic circuit (1), and an antilock brake control of the hydraulic brake is performed by controlling the pump (12), the closing valve (13) and the release valve (14), wherein the ABS hydraulic unit (100) has a circuit part (50a) in which the hydraulic circuit (1) is disposed, the circuit part (50a) includes: a discharge side passage where the pump (12) is disposed at one end of the discharge side passage in a longitudinal direction and the first connection end (A) is formed on the other end of the discharge side passage in the longitudinal direction, and connects a discharge side of the pump (12) and the first connection end (A) to each other; and a suction side passage which extends along the discharge side passage and connects a suction side of the pump (12) and the closing valve (13) to each other, and the accumulator (15), the release valve (14), the second connection end (B) and the closing valve (13) are arranged in the suction side passage in order from one end to the other end.

The invention discloses a control method of a double-loop electronic hydraulic braking system comprising two channels, and belongs to the field of electronic hydraulic braking control. An actuating mechanism of the electronic hydraulic braking system of each channel is a braking control module formed by a double-loop braking main cylinder, an ejector rod, a lever structure of the ejector rod, a motor, a transmission structure of the motor and the like. According to the whole vehicle braking system, the electronic hydraulic braking systems of the two channels are used for controlling oil pressure of braking wheel cylinders of wheel edge brakes acting on the two wheels on the left side and the two wheels on the right side of the vehicle respectively, then the braking torque of the wheels is controlled, and two sets of independent braking systems are formed. The electronic hydraulic brake system of each channel controls a brake master cylinder in a double-loop mode, and double liquid loops of front wheels and rear wheels on the same side of the vehicle are formed. In addition, the control system can simulate an ABS system during emergency braking, it is guaranteed that the vehicle always keeps good direction stability and operability during emergency braking, sideslip and deviation are prevented, and the safety performance of the vehicle during braking is improved.

The invention discloses a lifting mobile type building decoration herringbone ladder, which comprises a top plate. Front and rear symmetrical straight bars are fixedly arranged at front and rear positions of the lower end face of the top plate, left pedals and right pedals capable of supporting people to work on the tops are arranged at the left and right sides of the lower ends of the straight bars, the right ends of the left pedals and the left ends of the right pedals and the lower ends of the straight bars are rotatably installed between the two straight bars through rotation axes, brake control devices capable of controlling movement of the herringbone ladder are arranged in the upper end surfaces of the left pedals, and drive devices capable of promoting left and right movement of the herringbone ladder are arranged at the lower end faces of the right pedals. The lifting mobile type building decoration herringbone ladder drive device can be used in different occasions through anadjustment device capable of adjusting the height of the herringbone ladder, and the drive devices capable of driving the movement of the herringbone ladder can avoid workers frequently climb up and down and carry ladders.

A lane departure prevention apparatus is configured to avoid lane departure even when the driver is not focused on driving operations, in a state in which the system-operating switch is OFF. The lane departure prevention apparatus has a driver condition detection section or device for detecting that the condition of the driver which is a condition in which the driver cannot perceive that the host vehicle is tending toward departure, and a lane departure avoidance control device for setting the braking control for avoiding departure in an operable state when the system-operating switch for the driver to instruct the operation of control braking for avoiding the lane departure is OFF, the braking control for avoiding departure is OFF, and the driver condition detection section or device has detected that the condition of the driver is a condition in which the driver cannot perceive that the host vehicle is tending toward departure.