85results about How to "Parked securely" patented technology

The invention relates to a brake system for motor vehicles, which can be controlled both by a driver and independently of the driver in a "brake-by-wire" operating mode, comprising a brake pedal (1), at least two wheel brakes (8, 9, 10, 11) that can be actuated hydraulically, a first and a second brake actuation sensor (505a, 505b), a first electrically controllable pressure source (301, 5), by means of which the wheel brakes can be actuated, a first electronic control unit (112, 12), which is connected to the first brake actuation sensor (505a) and controls the first pressure source (301, 5), a second electrically controllable pressure source (302, 249), by means of which the wheel brakes can be actuated, a second electronic control unit (139, 39), which is connected to the second brake actuation sensor (505b) and controls the second pressure source (302, 249), a hydraulic control device (300), which comprises, in particular, at least a first solenoid valve (26, 26a, 26b) between the wheel brakes and the first pressure source and a second solenoid valve (23, 23a, 23b) between the wheel brakes and the second pressure source, and a data connection (53) between the first electronic control unit (112, 12) and the second electronic control unit (139, 39), wherein the first electronic control unit (112, 12) has a first interface (601) and the second electronic control unit (139, 39) has a second interface (602), wherein the first interface and the second interface are not connected to each other.

The invention relates to the technical field of automobile braking, in particular to an electronic parking system, a vehicle comprising the same and a control method. The invention aims to solve the problem that an existing electronic parking system is low in safety. In order to achieve the purpose, the electronic parking system comprises a primary parking controller and a secondary parking controller, wherein the primary parking controller is at least connected to a first wheel brake for receiving a braking command and controlling the first wheel brake to act based on the braking command; andthe secondary parking controller is at least connected to a second wheel brake for receiving the braking command and controlling the second wheel brake to act based on the braking command and a stateinformation of the primary parking controller. By arranging two electronic controllers redundantly, the electronic parking system can improve the safety performance of the vehicle.

The invention relates to a driver assistance system for a motor vehicle (10), comprising at least one driving data sensor (20) for sensing driving data that characterizes the driving condition of the motor vehicle (10), and an electrical controller (26) which is designed to initiate autonomous emergency braking of the motor vehicle (10) when predetermined driving data has been sensed. According to the invention, a device is provided which is designed to detect a preceding vehicle (22) located in front of the motor vehicle (10) in the direction of travel of the motor vehicle (10). The electrical controller (26) is designed to maintain a brake of the motor vehicle (10) in a braking position or bring the brake into the braking position following an emergency braking action when the device detecting a preceding vehicle detects the preceding vehicle (22).

The invention discloses a new method of chloroethylene through acetylene method and specific equipment, which comprises the following steps: disposing raw material gas strictly; reacting two-segment compensation; recycling heptane; cooling; radiating; providing specific catalyst and reactor to synthesize chloroethylene; disposing effluent with mercury to obtain high-purity chloroethylene monomer.

The invention provides a machine vision and machine learning-based automatic parking method and system. Images are collected via cameras arranged all around an automobile body, and a three-dimension image of the surround environment and a distance between the automobile body and a surrounding environment object can be obtained; parking lines can be identified according to a machine vision technology; the automobile is parked when an effective image is identified and an automatic driving mode is started; at the automatic driving mode, an optimal scheme is selected from preset parking lines according to a relative position between the current automobile and a parking lot; and the automobile is parked with a steering wheel, an accelerator and a brake pedal which are controlled by an electriccontrol device. Based on a preset database and reinforced machine learning, improvements are continuously made during the parking process, so less data input is guaranteed upon more application conditions; low demand is required for a parking position of the parking lot; forward and backward operations can be conducted; a wide application range is provided; and by the use of the machine vision andmachine learning-based automatic parking method and system, parking speed is accelerated and a reliable parking process is obtained.

The invention relates to a valve unit (86) for an electro-pneumatic brake control device (14) for controlling a vehicle brake, wherein the valve unit (86) can be or is connected to a control input (82) of an air-quantity-boosting valve device (64) and is designed for the controllable aeration and deaeration of said valve device (64) via its control input (82). A double-armature solenoid valve (134) is provided, having two magnet armatures (primary armature 138 and secondary armature 140) which are arranged in a common armature guide arrangement (136) and which are in each case loaded by a spring (142, 144) and which can be actuated by means of a common magnet coil (146). The primary armature serves as a switching element for a deaeration valve (148) and the secondary armature serves as a switching element for an aeration valve (150). When the magnet coil is not supplied with current, the primary armature (138) and the secondary armature (140) are situated in their basic position which is defined by the spring loading and in which aeration valve (150) blocks an aeration and the deaeration valve (148) activates a deaeration. When a first magnet current is fed in so as to flow through the magnet coil, the primary armature (138) is moved into a switching position, while the secondary armature (140) remains in the spring-loaded basic position. Here, the aeration valve blocks the aeration and the deaeration valve blocks the deaeration. When a second magnet current, which is greater than the first magnet current, is fed in so as to flow through the magnet coil, both the primary armature and also the secondary armature are moved into their switching positions determined by the magnet force, so that the aeration valve activates the aeration and the deaeration valve blocks the deaeration.

The invention relates to the technical field of vehicle brake, in particular to a double-motor brake actuation mechanism of a vehicle decoupling distribution brake system. The mechanism comprises a brake disc, a brake actuation part and a regeneration motor part; the brake actuation part includes a stepper motor and a brake clamp body; two ends of the brake clamp body are respectively positioned on two sides of the brake disc; the brake clamp body and the stepper motor are both slidingly connected with a shell of the brake actuation part; a friction block is arranged at one end of the brake clamp body; the other end of the brake clamp body is connected with the stepper motor; the stepper motor is in transmission connection with a first lead screw; a first nut is arranged on the first lead screw, and is connected with the friction block; the friction block on the brake clamp body and a friction block on a first nut are positioned on two sides of the brake disc; the regeneration motor part includes an electromagnetic clutch, a regeneration motor, a battery set and an electronic control unit; the battery set is electrically connected with the stepper motor; and the electronic control unit controls connection and disconnection of current between the battery set and the stepper motor. The mechanism converts brake energy to electric energy as brake power, and can share brake loads.

A parking brake actuator generates and applies a braking force to a vehicle wheel by converting a rotation movement of a screw member which is rotated by an electric parking brake driving device into a translatory movement and transmitting the converted translatory movement to a piston to push a brake pad to a disc by the piston. The electric parking brake driving device includes an electric motor and a reduction gear mechanism which transmits the driving force of the electric motor to the electric parking brake driving device. The reduction gear mechanism includes a pinion gear fixed to an output shaft of the electric motor, a first gear shaft rotatably supported on a first bearing member provided on a gear body and a first wheel gear formed on the first gear shaft and engaging the first wheel gear to thereby reduce the speed of driving force of the electric motor.

A parking brake actuator generates and applies a braking force to a vehicle wheel by converting a rotation movement of a screw member which is rotated by an electric parking brake driving device into a translatory movement and transmitting the converted translatory movement to a piston to push a brake pad to a disc by the piston. The electric parking brake driving device includes an electric motor and a reduction gear mechanism which transmits the driving force of the electric motor to the electric parking brake driving device. The reduction gear mechanism includes a pinion gear fixed to an output shaft of the electric motor, a first gear shaft rotatably supported on a first bearing member provided on a gear body and a first wheel gear formed on the first gear shaft and engaging the first wheel gear to thereby reduce the speed of driving force of the electric motor.

The invention discloses a trackless self-propelled platform truck for maintaining a subway tunnel. The trackless self-propelled platform truck comprises a mechanical system, a control system, a hydraulic system and a power system, wherein the mechanical system comprises a running gear, a main bearing platform, a fixed operating platform, a lifting operating platform, a telescopic operating platform, a support device, a vehicle-mounted equipment platform and a self-aligning mechanism, wherein the two ends of the main bearing platform and the fixed operating platform are in sliding fit with thetelescopic operating platform; the support device is connected with the telescopic operating platform; the vehicle-mounted equipment platform is used for placing vehicle-mounted equipment; the self-aligning mechanism is arranged below the vehicle-mounted equipment platform; the control system comprises a PLC; the PLC is mounted on the main bearing platform; the hydraulic system comprises a hydraulic actuating element; the hydraulic actuating element is mounted on the self-aligning mechanism; the input end of the hydraulic actuating element is connected with the PLC; and the power system is electrically connected with the hydraulic system and the control system. The trackless self-propelled platform truck can safely move and carry out maintaining operation in different subway tunnel diameters.

The invention relates to the technical field of car braking, in particular to a brake actuating mechanism integrating car motor braking and electromagnetic braking. The brake actuating mechanism comprises an electromagnetic clutch, a regeneration motor, an electromagnetic brake, a planetary gear mechanism, a cooling fan and the like. The electromagnetic brake and the regeneration motor are integrated into a whole. When a car is braked, an electronic control unit preferentially controls connection of the electromagnetic brake, car wheels drives a rotor of the regeneration motor to rotate through the planetary gear mechanism and the electromagnetic clutch, car braking energy is converted into electric energy, and braking torque is provided. When the braking torque provided by the regeneration motor is insufficient, the electronic control unit preferentially controls the electromagnetic brake to work. A traditional friction braking device is omitted, the brake actuating mechanism has the advantages of being compact in structure, convenient to arrange, good in dynamic characteristic, easy to control integrally and the like, the braking energy recovered by the regeneration motor can directly drives the electromagnetic brake to work, the generated braking torque can share car braking loads, and thus energy consumption caused by work of the electromagnetic brake is reduced.

The invention disclsoes a gear-shifting parking system for a pure-electric delivery vehicle with a parking function. The gear-shifting parking system comprises a storage battery, a VCU (Vehicle Control Unit), an ignition switch, a gear-shifting mechanism, an electronic parking controller, a motor, a mechanical inhaul cable and a parking brake; the storage battery supplies power to the VCU, the gear-shifting mechanism, the electronic parking controller and the motor respectively; the ignition switch is electrically connected with the VCU; the VCU is electrically connected with the gear-shifting mechanism and the electronic parking controller respectively; the gear-shifting mechanism is connected with the electronic parking controller; the gear-shifting mechanism is provided with a gear P; a signal output end of the electronic parking controller is connected with a signal input end of the motor; a rotary shaft of the motor is connected with the mechanical inhaul cable; and the mechanical inhaul cable is connected with the parking brake. According to the gear-shifting parking system provided by the invention, one gear P is added to the existing gear-shifting mechanism with three gears; meanwhile, the gear-shifting parking system is combined with an existing developed electronic parking device and a special switch for electronically parking is cancelled; and functions of shifting the gears and parking are realized through the gear-shifting mechanism after ingenious modification is carried out, and the gear-shifting parking system is convenient and reliable for parking.

The invention discloses a 1000kW-power-grade pure electric alternating current driving shunting locomotive and relates to the field of rail transportation. The locomotive is divided into a locomotive main body and a lower structure from top to bottom; the locomotive main body comprises an auxiliary room, a first storage battery room, an electric room, a second storage battery room, a cab and a rear machine room from right to left; the lower structure comprises two bogies, and an auxiliary converter cabinet and a vehicle-mounted charging transformer which are arranged in the middles of the two bogies respectively; the locomotive main body is seated on the two bogies through side bearings; the bogies are provided with wheel pairs; a traction motor provides power to the wheel pairs; an output shaft of the traction motor drives the wheel pairs through a traction gear so that power transmission is realized; the traction motor is driven by electric energy provided by the first storage battery room and / or the second storage battery room so that a zero-emission environment-friendly degree is realized; power driving also has the characteristics of no mechanical response time, capability of outputting high energy in short time, and extremely high locomotive acceleration performance.

A parking assistance system for parking a vehicle in a parking garage includes a measuring sensor system, with at least one sensor which is arranged on at least one end of the vehicle, and which measures a contour of the parking garage. The parking assistance system further includes a steering control unit, which automatically steers the vehicle from a stopping point into a parking end position inside the parking garage.

The invention relates to a network type all-digital motor soft starter which is characterized in that a control module structure combining a micro-programmed control unit (MCU) and a complex programmable logic device (CPLD) is adopted and is respectively connected with a voltage detection module, a current detection module, a trigger driving module, a keyboard display module and a network communication module so as to form the network type all-digital motor soft starter. The network type all-digital motor soft starter leads a voltage signal and a current signal to be converted into a digital signal and a logic signal so as to realize the functions of all-digital phase compensation, digital phase shift (with the phase shift accuracy of 0.05 degree), phase loss protection, automatic detection of phase sequence, overload protection, wide pulse or double-narrow-pulse trigger and the like, and ensures a motor to be more stably and reliably started and stopped, thus protecting a power grid, the motor and load equipment. Furthermore, the network communication module can be used for networking, so that remote monitoring can be realized. A circuit is simple in structure, high in integration level, phase control accuracy and reliability, good in stability and high in cost performance.

The invention relates to an emergency valve for high-speed motor train units and urban rail transit vehicles. The emergency valve comprises a pneumatic control valve and an electromagnetic valve mounted on the pneumatic control valve, the electromagnetic valve is connected with a control air channel of the pneumatic control valve, the pneumatic control valve comprises a valve body assembly, a spool assembly and a piston, the spool assembly and the piston are both mounted in an inner cavity of the valve body assembly in a sleeved manner, a piston spring is arranged between the piston and the valve body assembly, a spring seat is mounted at one end of the valve body assembly, an end cap is mounted at the other end of the valve body assembly, and a retaining spring is arranged between the spool assembly and the spring seat. Three air channel ports are arranged on the valve body assembly and are respectively communicated with the inner cavity of the valve body assembly. Emergency braking of the emergency valve is controlled by power on and power off of the electromagnetic valve, once the electromagnetic valve is powered off due to manipulation of a driver or other reasons, the emergency valve cuts off a closed circuit of a pneumatic and electric conversion valve and a relay valve and connects a closed circuit of a braking air storage cylinder and the relay valve so as to achieve emergency braking, and response time of the emergency valve to an emergency braking instruction is not longer than 0.2s.

The invention relates to the technical field of automobile control, in particular to an EPB slip slope reclamping method for new energy automobiles. The EPB slip slope reclamping method is characterized in that whether a brake disc needs further clamping or not is judged through the following steps that step1, if a continuous driving distance exceeds a set threshold value S in parking, the brake disc is judged to need the further clamping; step2, if the brake disc temperature is above a set threshold value in the parking, the brake disc is judged to need the further clamping; and step3, a wheel speed sensor periodically detects vehicle wheel displacement after the parking, and if the vehicle wheel displacement exceeds the set threshold value, the brake disc is controlled to be clamped again and reset the vehicle wheel displacement through EPB. The EPB slip slope reclamping method for the new energy automobiles has the substantive effects that the brake disc state is grasped through a variety of steps, guarantee is provided for the parking stability, and the parking safety is improved; and by means of brake disc temperature calculation, the brake disc temperature state is grasped under the situation of not adding a temperature sensor, the fact that reliable parking can still be performed when the brake disc temperature is too high is guaranteed, and the vehicle safety is improved.

The invention provides a gantry crane travelling unit device for the railway. A motor is arranged at an outer side of a casing. An output end of the motor is arranged in the casing. The output end of the motor is provided with a small bevel gear. The small bevel gear is in a meshing drive connection relationship with a large bevel gear in the casing. A transmission shaft and a travelling axle are installed in the casing. The large bevel gear is installed at one end of the transmission shaft and a transmission gear is installed at the other end of the transmission shaft. A travelling wheel is installed on the travelling axle. A travelling gear is directly or indirectly connected to the travelling wheel. The travelling wheel is in a drive connection relationship with the transmission shaft by the transmission gear and the travelling gear meshed with the transmission gear. The casing is provided with a hydraulic braking cylinder. A power output end of the hydraulic braking cylinder is connected to a brake shoe. The brake shoe which presses the marginal surface of the travelling wheel thereby braking the travelling wheel is arranged at an upper side of the marginal surface of the travelling wheel. The gantry crane travelling unit device has the advantages of compact structure, no strict requirements on a total framework structure of a gantry crane, strong generality, travelling safety and parking reliability.

The invention provides an emergency braking management system and a control method thereof. The emergency braking management system and the control method thereof can enable the emergency braking system to effectively apply braking force and ensure that a train stops within a safe distance. The system comprises an emergency brake management device used for collecting EB loop signals of a train; wherein the signal acquisition module is connected with a train power supply line to acquire a PWR signal; acquiring a train speed signal from a speed sensor; and according to the high-low level and the speed signal of the EB loop signal, outputting an EBS signal to the I-level emergency braking unit or the II-level emergency braking unit through internal logic operation judgment so as to realize I-level emergency braking or II-level emergency braking.

The invention discloses an accelerator control system of a mini-tiller. A crank shaft box body is provided with an operating arm installation column and a spring installing column; an accelerator is provided with an accelerator arm; an accelerator return spring, a restoration support and an accelerator operating arm are sequentially sleeved on the operating arm installation column from inside to outside; the lower end of the restoration support is installed on the operating arm installation column; a return bracing wire spring is connected between the right end of the restoration support and the spring installation column; the left end of the restoration support is connected with an accelerator return bracing wire which is connected with a parking handle; the middle part of the accelerator operating arm is installed on the operating arm installation column; the middle part of the accelerator arm is installed on the accelerator; a refueling spring and an oil return spring which are respectively positioned at the left side and right side of the accelerator are connected between the accelerator operating arm and the accelerator arm; an accelerator wire is connected between the accelerator operating arm and the control device; and the restoration support and the accelerator operating arm are respectively and correspondingly provided with a pushing support lug and a stirring support lug. According to the invention, the accelerating, idling and parking of the mini-tiller can be realized well.

The invention discloses a self-adjustable servo type service drum brake with parking function. A parking brake device is additionally arranged on a self-adjustable servo type drum brake assembly, according to the parking brake device, a parking pull arm is hinged to a through hole formed in the upper part of a rear tendon of a rear brake shoe assembly through a pull arm pin, and is fixed and limited through a retainer ring at a hinge joint of the through hole; and grooves are formed in the middle of the parking pull arm and the middle of a front tendon of a front shoe assembly, the two ends ofa parking push plate are correspondingly arranged at the middle of the parking pull arm and the groove in the middle of the front tendon of the front shoe assembly, one end of a parking inhaul cableis connected to the lower end of a brake pull arm, and the other end of the parking inhaul cable penetrates through a brake bottom plate assembly to be connected to a hand brake end of a vehicle chassis. According to the self-adjustable servo type service drum brake with the parking function, a vehicle with a servo type drum brake can realize manual parking, the cost for independently developing aparking device is saved, and the reliability is high.

The invention discloses an alarm device for parking limit. The device comprises a limit station, an alarm mechanism, a power supply mechanism and handles. The limit station comprises a background anda foreground, the background is arranged side by side with the foreground, the lower end faces of the background and the foreground are hinged through a hinge, the front surfaces of the background andthe foreground are both fixed with rollers, the handle comprises a first handle and a second handle, the second handle is fixed at the rear surface of the background, the first handle is fixed at therear surface of the foreground, the alarm mechanism comprises an installation block and an audible and visual alarm. The alarm device for parking limit cannot generate impact and cannot damage tiresthrough adoption of novel primary prompting and secondary prompting to ensure people comfort and reduce the damaging of tires, when the device is moved to a warehouse without usage of the device, thebackground and the foreground are folded to arrange the rollers at the ground, and the handles are pushed to make the device convenient movement and convenient receiving.

The present invention involves a three-dimensional garage elevating gear rotating platform positioning device, relates to garage technical field. It is characterized by: the lower of rotating platform is equipped with magnet folding-type stopping and gap controlling device 2 and the proximity piece 4 near switches; the erector 6 of lifting device or at least stopping corresponding position of parking layer are equipped with magnet folding-type stopping and gap controlling device 5 and proximity switch bulk 3, the proximity switch bulk 3 is relative with the position of proximity piece 4. The characteristics of the invention are: the structure is simple and compact, it can ensure the gap of proximity switch signals, guarantee the rotating positioning of rotating platform automatically and the parking is accurate, reliable, swift, convenient and simple, it can cancel out sluggishness, the performance is reliable and the use is easy. It can be applied to the positioning of various three-dimensional garage lifting device rotating platform.

The invention discloses a micro-cultivator. A clutch capable of automatically clutching is installed between an output shaft and a crank shaft; a crank shaft box body is provided with an operating arm mounting post and a spring mounting post provided with a return support, wherein the operating arm mounting post is successively sheathed with an accelerator return torsional spring, the return support and an accelerator operating arm from inside to outside; the accelerator is provided with an accelerator arm; a return stay wire spring is connected between the right end of the return support andthe spring mounting post; the left end of the return support is connected with an accelerator return stay wire connected with a shutdown handle; the middle of the accelerator operating arm is installed on the accelerator arm mounting post; the middle of the accelerator arm is installed on the accelerator; a refuelling spring and an fuel return spring which are respectively positioned on the left side and the right side of the accelerator are connected between the accelerator operating arm and the accelerator arm; an accelerator wire is connected between the accelerator operating arm and a control device; and the return support and the accelerator operating arm are respectively and correspondingly provided with a pushing support lug and a stirring support lug. The micro-cultivator can better automatically clutch, accelerate, idle and stop.

The invention relates to a mine car arrester, which comprises an outer arm and an inner arm; An upper end of that out arm and an upper end of the inner arm are respectively provide with connecting holes; An upper end of that out arm and an inner arm are connected with each other by nail bolts; The upper part of the inner arm is provided with a pillow beam for receiving the shearing of the wheel rim of the mine; The upper part of the outer arm is butted to the pillow beam with a stop; The sleeper beam includes a sleeper surface that coincides with the rail head surface and resists shearing of amine wheel; A locking block is arranged on the lower inner side of the inner arm. A mine car stop of that invention fastens the car stop into an integral body and is jacketed on the rail head of therail through nail bolts, and the car stop does not detach from the rail in any case; The car arrester can be rotated integrally under the impact of the wheel rim of the mine, so that the four lockingsurfaces can be reliably contacted with the lower part of the rail head and the upper part of the rail bottom, and the manufacturing cost is low; operation is easy, only two bolts need to be tightenedduring installation; the mine car arrester is light in weight, easy to carry, no need for maintenance and repair, high reliability of vehicle blocking.

The invention discloses a stereo garage. The stereo garage comprises a parking frame, a vehicle lifting frame and a control box; the parking frame is provided with a slide rail, and a longitudinal moving mechanism capable of moving longitudinally is arranged in the slide rail; the vehicle lifting frame is provided with a lifting mechanism and a transverse moving frame; the lifting mechanism is movably arranged on the transverse moving frame, and the transverse moving frame is arranged on the vehicle lifting frame through a transverse moving mechanism; and the longitudinal moving mechanism, the lifting mechanism and the transverse moving mechanism are all connected with the control box. By using the independent lifting mechanism to park vehicles, the service life of a carrying plate is prolonged, parking is safe, reliable and stable, meanwhile, a chain transmission mechanism stable in structure is used, and the safety of the garage is ensured.

The invention discloses an emergency shutdown device for an air-cooled diesel engine. The emergency shutdown device comprises a speed adjusting seat and a fuel spraying pump. The throttle of the fuel spraying pump is provided with a throttle pull rod provided with a baffle. A solenoid valve is arranged on the diesel engine, by opening and closing of the solenoid valve, a connected stirring rod is driven to move to stir the baffle to the minimum position of the throttle so as to cut off the fuel and shutdown the diesel engine. The device has the advantages that when abnormal situations, such as galloping, cylinder scoring and bearing score, occur during operation of the diesel engine, emergency shutdown can be performed, and safeties of the diesel engine, matching devices and operators are guaranteed.