30results about How to "Safe and reliable parking" patented technology

The invention discloses an intelligent parking braking and auxiliary starting control method, which includes steps of firstly, initializing an intelligent parking braking controller and reading control parameters stored in a single-chip microcomputer, secondly, reading a vehicular speed signal V, a brake pedal travelling signal Db, an accelerator pedal travelling signal Da, a transmission gear signal Js, an ignition key door switch signal Key, an enable switch signal Button, a front wheel speed signal wf, a rear wheel speed signal wr and a gradient signal Sa, thirdly, invoking and performing an intelligent parking control procedure, an auxiliary starting control procedure, a parking brake automatic retracting control procedure, a long-term parking control procedure, an emergency braking control procedure or manual reset cutting-off control procedure according to the read signals and fulfilled response conditions, fourthly, converting the target torque of a motor according to the motor target braking force calculated from the control procedures, fifthly, calculating the target rotor current of the motor according to the obtained target torque of the motor, and sixthly, controlling the duty ratio of a motor PWM (pulse width modulation) driving control circuit according to the target rotor current of the motor.

The invention discloses an implementing mechanism of a vehicle electronic parking brake system. The invention comprises a transmission device and a brake clipping caliper assembly. After the output of the direct current motor in the transmission device is performed with speed reduction and torque increase via a synchronization belt transmission device and a involute few tooth difference planetary transmission device, the rotation motion is transferred into a straight line motion through a sliding helical transmission mechanism, and a braking disc is braked through the method that a piston and a braking block assembly are pushed by a screw sleeve. The circumferential freedom degree of the piston is limited by the braking block assembly, and the circumferential and the racial freedom degrees of the screw sleeve are respectively limited by a piston non-round hole and a blocking ring. The screw sleeve and a screw rod adopt self locking thread matching, to guarantee the parking braking to be secure and reliable. Compared with the implementing mechanism of the traditional vehicle rear wheel parking braking system, the invention has the advantages that the driving cab space is saved, the labor intensity of the driver is reduced, the parting braking is more secure and reliable, and the invention is convenient for adopting intelligent control and integrating other functions.

The invention relates to an electric vehicle parking device. When a vehicle is parked, a motor is operated forwards, power of the motor is decelerated through a worm, a worm gear, a screw and a pushing rod and used for pushing a belleville spring and a taper ring, the acting force of the spring is gradually overcome by a pawl pushed by the taper ring, so that the pawl is pushed to rotate towards a ratchet wheel, a single tooth arranged on the pawl is meshed with a toothed groove formed in the ratchet wheel, and therefore the vehicle is parked. When the vehicle is relieved, the motor is operated in the opposite direction, the power of the motor is decelerated through the worm, the worm gear, the screw and the pushing rod, so that the pushing force of the belleville spring and the pushing force of the taper ring are eliminated, the pawl rotates in the direction far away from the ratchet wheel under the acting force of the spring, the single tooth arranged on the pawl is separated from the toothed groove in the ratchet wheel, and therefore the vehicle is relieved. According to the electric vehicle parking device, the structure is simple, an ignition switch is used for sending a switching signal, interference of a driver is not needed in the parking process, and a parking brake is made to work automatically, so that the parking and braking effect is achieved, operation behaviors of the driver are reduced, operation is smooth, and work is reliable.

The invention belongs to the field of engineering machinery, and in particular relates to a parking brake. The brake wheel is arranged on the brake shaft and the brake shaft can move axially along the brake wheel; the brake housing and the piston housing are fixed by bolts, and A brake assembly that restricts the rotation of the brake wheel is provided between the moving housing and the piston housing; the flange is fixed on the end surface of the brake shaft close to the brake housing; the spring seat is fixed on the piston housing, and the piston is sleeved on the on the brake shaft, and can move axially between the piston housing and the spring seat. The spring seat is set with a clutch spring group that pushes the piston to move to the flange side. The air inlet of the axial gap between the pistons; the outer end surface of the flange is provided with a tooth shape matched with the shaft end surface of the axle wheel drive shaft. The friction plates of the present invention do not generate or generate relatively little wear and heat, and do not need to cool down and lubricate; and because they do not directly act on the friction plates, the pressure to release the brake is small, so the air source power is used, which is energy-saving and environmentally friendly.

A main standing leg for motorcycle is composed of a supporting leg pivoted to motorcycle and pedal rod lined to lower part of said supporting leg. A rotor is fixed to the said supporting leg in the mode that it is opposite to said pedal rod. A rotary swinging block is pivoted to the said rotor. A torsional spring is used for allowing said rotary block to swing only in one direction.

The invention provides a rotary fork tooth type stereo garage. The rotary fork tooth type stereo garage mainly comprises a stereo garage body with a plurality of fixed fork tooth type vehicle loading trays, a garage carrying lifting system and the like. The fixed fork tooth type vehicle loading trays and the movable fork tooth type vehicle loading trays are directly exchanged vertically to park and take vehicles. The problem that parking spaces of an existing comb tooth type stereo garage cannot be directly exchanged to park and take the vehicles is solved. The garage is simple in structure; vehicles are parked and taken conveniently and quickly; and the stereo garage is safe and reliable, and is simple to mount and repair and scientific and reasonable in structure. The cost of the stereo garage is lower than that of an existing garage. In addition, a plurality of stereo garages can be established together according to the occupied area. Sizes of construction molds can be large or small. The rotary fork tooth type stereo garage has quite large market competitive superiority and quite large development potential; and the problem that the vehicles park difficultly can be solved well.

The invention relates to a modular trolley for carrying rail detection equipment. A seat module is detachably mounted on a trolley body module, wherein a front axle module and a rear axle module are detachably mounted below the trolley body module, the front axle module is an active power module and comprises a driving motor, and the modular trolley runs on a detection rail through the front axlemodule and the rear axle module; a main driving operation panel and an auxiliary driving operation panel which are used for enabling the modular trolley to be driven in two directions without turningaround are arranged in the trolley body module. The main driving operation panel and the auxiliary driving operation panel are both in communication connection with the driving motor and do not control the driving motor at the same time, and switching is conducted through a selector switch, so that the main driving operation panel and the auxiliary driving operation panel can control the driving motor. The weight of each module in the modular trolley does not exceed 60kg, so that the modular trolley can be carried by a single person; and each module can be moved into a vertical elevator by a single person, and can be used for the use environment of a subway scene.

The invention relates to a two-wheel motorcycle provided with a pull rod steering device and foot-control supporting wheels and used in an opening and closing mode. The two-wheel motorcycle comprises a motorcycle body, a front wheel, a rear wheel, a braking device, a main motor, a program controller, a circuit system, pull rod speed adjusting handles and an accessory device of an existing two-wheel motorcycle. The two-wheel motorcycle further comprises the steering pull rod device, a roof cover device and a foot-control supporting wheel device. The upper portion of the motorcycle body is provided with a motorcycle cover used for getting on or off the motorcycle body, and when the motorcycle cover is closed, the height of the motorcycle body is 1.18 meters. A high-speed motor of the rear wheel enables the running speed of the two-wheel motorcycle to be the same as that of an automobile. Two sets of steering pull rods installed on handles of the front wheel are used for controlling steering of running, and the freedom degree is high, so that a lower seat is 0.1 meter high, and the motorcycle is comfortable to drive; the pull rod handles at the tail end of the steering pull rods are used for controlling speed, steering and braking; when the semi-open motorcycle cover covers the top roof cover, the motorcycle can be driven in a high-seat mode and is more comfortable; a driver pedals a foot pedal forward in the motorcycle to control the supporting wheels of the two sides of the motorcycle to respectively lift or touch the ground so that the motorcycle can be guided and parked in a self-locking mode, wherein the wheel distance is 1.1 meters; the parking method is sensitive and safe, and saves labor; according to the two-wheel motorcycle, the motorcycle body is low in height, the supporting wheel distance is large, the motorcycle is safe to drive, a user can drive the motorcycle after obtaining a license, energy is saved, haze is reduced, and the motorcycle has a great effect on relieving the traffic jam.

The invention relates to an intelligent hand brake system of a commercial vehicle. The intelligent hand brake system comprises a parking air storage cylinder, wherein the parking air storage cylinderis connected to an air brake chamber through an air pipeline; the air brake chamber controls the parking braking of vehicle wheels; the air pipeline is provided with an intelligent hand brake panel and executive mechanism; the intelligent hand brake panel and executive mechanism is connected to a processor; the intelligent hand brake panel and executive mechanism comprises a panel; the panel is provided with an automatic mode button, a manual switch and an emergency automatic mode releasing switch; a normally closed single-pass solenoid valve is arranged at the back of the panel; and the normally closed single-pass solenoid valve is connected to the automatic mode button and the emergency automatic mode releasing switch. The intelligent hand brake system of the commercial vehicle removes ahand brake valve, replaces the hand brake valve with the panel of an intelligent hand brake, and still adopts an on-off air passage to realize the start-stop parking of the vehicle. When the air passage is disconnected, the air brake chamber performs parking; and when the air passage is unblocked, the air brake chamber stops parking. When the intelligent parking system fails, the intelligent parking system can be manually released to realize manual parking.

The invention discloses an electromagnetic braking system of a toothed rail sightseeing train. The device comprises a main shaft, a steel wheel, a gear box, a traction wheel, a brake disc, a brake belt and a traction motor, wherein the steel wheels are sleeved on the main shaft and rotate along with rotation of the main shaft, the gear box is arranged between the steel wheels on two sides and usedfor achieving power transmission of the traction motor, the traction gear is arranged in the middle of the main shaft, the brake disc is arranged on the main shaft between the traction gear and the steel wheel far away from one side of the gear box, and the brake belt surrounds the brake disc. The traction device further comprises an electromagnetic brake, the electromagnetic brake is arranged onan output shaft of the traction motor in a sleeving mode, and one side of the electromagnetic brake is fixed to the traction motor. The braking target is the output shaft of the traction motor, parking is achieved through braking and releasing braking generated by power-on and power-off of the electromagnetic brake, then braking torque amplification is conducted through the gear box, and the generated braking effect is better.

A movable type self-priming water pump device comprises a movable trolley (2) with a parking device (26), a water pump device (7) with a self-priming function, a tractor (1) with a power output shaft (3) and a transmission device (4) connected with the power output shaft (3) of the tractor (1) and the pump shaft of a water pump (8), the water pump device (7) is arranged on the movable trolley (2), and the tractor (1) can drag the movable trolley (2) to advance. The movable type self-priming water pump device has the advantages that the device is flexible, convenient to operate, high in use ratio and less in investment; traction power and driving force are provided by the tractor, and the structure is simple; the device can be suitable for muddy roads, inclined slopes and other complex roads and site conditions, movement in place is easy, and parking is safe; when the movable type self-priming water pump device does not work, the tractor can be used for other aspects, and the use ratio of the tractor is improved.

The invention provides a high-reliability tractor safety control device and method. The safety control device comprises a vehicle-mounted storage battery, an input switch assembly, a safety controller, an actuator assembly and a whole vehicle CAN bus, and the vehicle-mounted storage battery is connected to the input switch assembly, the safety controller and the actuator assembly; the input switch assembly is connected to the input end of the safety controller, the output end of the safety controller is connected to the actuator assembly, the whole vehicle CAN bus is in bidirectional connection with the safety controller, and when the control device works, all switches in the input switch assembly provide input signals for the safety controller. The safety controller carries out safety strategy operation according to the received input signal and the rotating speed signal sent by the whole vehicle CAN bus and controls the actuator assembly to execute corresponding actions according to the operation result, it can be guaranteed that the tractor is reliably, stably and safely started, driven and parked in the operation process, and the urgent requirement of a tractor user is met.

The invention provides a loader auxiliary parking device using the load as the power source. The loader auxiliary parking device comprises a carframe working machine body, a hydraulic cylinder and a parking brake, wherein a brake caliper braking piston is configured on the parking brake; a charging hopper is arranged at the front part of the carframe working machine body; the hydraulic cylinder is supported on the charging hopper; and an oil pipe is connected between the hydraulic cylinder and the brake caliper braking piston; and an electromagnetic valve is installed on the oil pipe. When the loader is loaded, the brake caliper braking piston is pushed by the pressure of the hydraulic cylinder, so that a transmission shaft stops driving and then the brake action is achieved. The loader auxiliary parking device has the advantages that when the loader is largely loaded, the safe, reliable, rapid and balance parking brake can be realized.

The invention discloses a baby carriage. The baby carriage comprises a frame, a seat, a handle, front wheels, rear wheels, a handle reversing mechanism, front wheel directional mechanisms, rear wheeldirectional mechanisms, a retractable mechanism, a brake mechanism and a false retracting prevention mechanism. The seat is arranged on the upper end of the frame, the lower end of the handle is connected with the upper end of the frame, the handle reversing mechanism is arranged on the combination position of the handle and the frame, the front wheels and the rear wheels are mounted on the frontend and the rear end of the frame correspondingly, and the front wheel directional mechanisms, the rear wheel directional mechanisms, the retractable mechanism, the brake mechanism and the false retracting prevention mechanism are arranged on the frame. Due to the front wheel directional mechanisms, the rear wheel directional mechanisms and the brake mechanism, parking safety and reliability are ensured, due to the fact that the handle reversing mechanism is operated, the advancing direction is changed, use is convenient, due to the fact that the retractable mechanism is arranged, the baby carriage can be folded and stored, and occupied space is small.