288results about "Pump/compressor arrangements" patented technology

A pneumatic system for a vehicle, comprising an air compressor for pressurizing an air tank. A flow passage extending from compressor is bifurcated to a first valve and to a second valve. The first valve has a first state preventing air from passing to the air tank, and has a second state allowing air to pass to the air tank. In a first mode of operation of the pneumatic system, the first vale is in said first state and the second valve controls air flow from the compressor to ambient environment. The second valve is configured to change to, or remain in, an open state when the pressure of the air upstream of the second valve is higher than a predetermined threshold, and to change to, or remain in, a closed state when the pressure of the air upstream of the second valve is lower than the predetermined threshold.

The invention provides a self-adaptive energy-saving control method, device, equipment, system and vehicle, and relates to the technical field of vehicle control. The method comprises the steps that if the new energy vehicle is in a parking mode, the trailer connection state of a tractor is detected; if the tractor is connected with the trailer, a gas circuit electromagnetic valve arranged on a main gas circuit pipeline between the tractor and the trailer is controlled to be opened, and a blast pump is started to charge the pressure of a trailer gas storage cylinder on the tractor to a preset initial pressure maintaining threshold value; after the preset initial pressure maintaining threshold value is reached, the inflation pump is controlled to stop working, pressure monitoring is conducted on the trailer air cylinder, and the monitored pressure value of the trailer air cylinder is obtained; determining the leakage level of the trailer brake circuit according to the monitored pressure value; and according to the leakage grade, the air path electromagnetic valve and the blast pump are correspondingly controlled. The air pump can be prevented from being frequently awakened in the parking process, energy consumption and noise are reduced, the driving range of the whole vehicle is increased, rest comfort is improved, and the service life of the air pump is prolonged.

The invention provides a vehicle chassis structure, and relates to the technical field of vehicles. The structure comprises a frame, a plurality of axles, a battery assembly, an electric appliance integration assembly, a brake assembly, a steering assembly and a suspension assembly, the plurality of axles comprise a first axle, a second axle, a third axle, a fourth axle and a fifth axle, and the plurality of axles, the battery assembly, the electric appliance integration assembly, a driving assembly, the brake assembly, the steering assembly and the suspension assembly are arranged on the frame; the battery assembly is located between the first shaft and the second shaft, the electric appliance integration assembly is arranged above the first shaft, and the battery assembly is connected with the electric appliance integration assembly; the brake assembly is connected with the multiple axles and used for controlling the multiple axles to brake. The steering assembly is used for controlling the first shaft, the second shaft and the fifth shaft to steer; the suspension assembly is used for controlling the third shaft, the fourth shaft and the fifth shaft to ascend and descend, and the loading performance of the vehicle is improved.

To provide a hydraulic control unit for a saddle-riding type vehicle, which includes a pump for moving a brake fluid and a holder for holding a filter through which the brake fluid passes in the pump, can be miniaturized, and can prevent the holder from not being provided in a prescribed posture.SOLUTION: The hydraulic pressure control unit includes a base body in which an internal flow path that allows a wheel cylinder and a master cylinder to communicate with each other is formed, and a pump that moves a brake fluid in the internal flow path, wherein the base body includes a recessed portion in which the pump is provided, the pump includes a cylinder in which a compression chamber that compresses the brake fluid is formed, a piston portion whose input-side end portion is pressed by a motor and whose partition-side end portion is inserted into the compression chamber to partition the compression chamber, and a holder that holds a filter through which the brake fluid flowing into the inflow flow path passes, and the holder includes an abutting portion whose base end portion is connected to the cylinder and that abuts on a wall surface of the recessed portion.SELECTED DRAWING: Figure 3

The present invention provides a vehicle braking system and a vehicle. The vehicle braking system (1) comprises a brake fluid control assembly (100), connecting oil pipes (300), and a brake master cylinder assembly (200). The brake fluid control assembly comprises an oil circuit block (110) and a pressure booster (120). The pressure booster is mounted on the oil circuit block. Oil circuit block ports (111) are provided on the side of the oil circuit block, and one end of each connecting oil pipe is connected to an oil circuit block port, and the brake master cylinder assembly and the brake fluid control assembly are arranged separately. Assembly ports (210) are provided on the outer circumferential surface of the brake master cylinder assembly, and the other end of each connecting oil pipe is connected to an assembly port. The brake master cylinder assembly communicates with the brake fluid control assembly by connecting oil pipes, and both the brake master cylinder assembly and the pressure booster can be driven to output brake fluid from the oil circuit block.

Brake system (1) for a vehicle is provided, comprising a first hydraulic circuit (10) including a first wheel brake (11), a second hydraulic circuit (20) including a second wheel brake (21), a first hydraulic pressure supplier (12) including an actuator for pressurizing the first hydraulic circuit (10) in a normal operating mode, a second hydraulic pressure supplier (22) including an actuator for pressurizing the second hydraulic circuit (20) in the normal operating mode, a cut-off valve (30) hydraulically connecting the first and second hydraulic circuits (10, 20), a first control unit (14) for controlling the cut-off valve (30) and activating the first hydraulic pressure supplier (12) and the second hydraulic pressure supplier (22) depending on a brake request, and a second control unit (24) for controlling the cut-off valve (30) and activating the first hydraulic pressure supplier (12) and the second hydraulic pressure supplier (22) depending on a brake request, wherein the first control unit (14) and / or second control unit (24) are configured for keeping the cut-off valve (30) closed in the normal operation mode and to open the cut-off valve (30) in an emergency mode or in a pressure balancing mode, wherein the first hydraulic pressure supplier (12) is hydraulically connected to both the first hydraulic circuit (10) and the second hydraulic circuit (20) for pressurizing said hydraulic circuits (10, 20) in the emergency mode or wherein the second hydraulic pressure supplier (22) is hydraulically connected to both the first hydraulic circuit (10) and the second hydraulic circuit (20) for pressurizing said hydraulic circuits (10, 20) in the emergency mode.

The invention relates to a compressor module (10), in particular for a compressed-air supply system (20) of a vehicle. The compressor module (10) comprises a compressor (12) and a speed-regulated brushless electric motor (14) for driving the compressor (12). During operation of the electric motor (14), a motor current (IB) arises. The electric motor (14) is assigned motor electronics having an electronic commutator and speed regulation. The compressor module is connected to or comprises an electronic control unit (100). The electronic control unit (100) is designed to specify, according to the average motor current (IB), one of at least two different target speeds for the electric motor (14), namely at least a predefined first target speed (n1, soll) and a predefined second target speed (n2, soll) which is less than the predefined first target speed (n1, soll), and to switch from specifying the predefined first target speed (n1, soll) to specifying the predefined second target speed (n2, soll) when the average motor current (IB) reaches or exceeds a specified motor-current current limit value (Imax; Imax, red).

The invention relates to the technical field of hydrogen fuel cells, in particular to a locomotive hydrogen fuel cell, an air braking system and a centralized air supply method of the locomotive hydrogen fuel cell and the air braking system. Comprising a first buffer air cylinder and a second buffer air cylinder which are located in the center of a system, one end of the first buffer air cylinder is connected with one end of the second buffer air cylinder, a second check valve is arranged on a connecting pipeline, a pressure sensor is arranged at the end of the extending end of the connecting pipeline, and one end of the first buffer air cylinder is connected with a fuel cell through a pipeline. A pressure reducing valve is arranged on a pipeline connecting the first buffer air cylinder and the fuel cell, the other end of the first buffer air cylinder is connected with an air compressor through a pipeline, an air purifying device and a first check valve are arranged on a pipeline connecting the first buffer air cylinder and the air compressor, and the other end of the second buffer air cylinder is connected with an air braking system. The system is provided with a plurality of air compressor sets, and normal operation of the locomotive cannot be affected even if a single air compressor breaks down.

The invention relates to a method for operating an electric motor (1), in particular a piston pump (9), wherein the electric motor (1) has a rotor shaft (3) and is driven with a target rotational speed (n soll ) and a target direction of rotation for the rotor shaft (3) depending on a power requirement, wherein an actual rotational speed (n Ist ) of the rotor shaft (3) is monitored. The method according to the invention is characterized in that the target direction of rotation is changed for a predetermined period of time (t) when the actual rotational speed (n Ist ) is equal to zero and the target rotational speed (n soll ) is not equal to zero, and the electric motor (1) is then driven again with the target rotational speed (n soll ) and the target direction of rotation.

The utility model provides a loader booster pump arrangement structure, which belongs to the technical field of loaders and comprises a plurality of booster pumps and a brake valve, the booster pumps are arranged below a loader cab side by side, the brake valve is arranged in the loader cab, and the brake valve is connected with the booster pumps through brake air pipes. By shortening the distance between the booster pump and the brake valve, the air pressure loss between the booster pump and the brake valve is reduced, so that the brake performance of a vehicle is ensured.

The utility model relates to the technical field of vehicles, in particular to a support structure, a braking system and a vehicle. The support structure comprises a first mounting assembly and a second mounting assembly, the first mounting assembly comprises bearing pieces and connecting pieces arranged in pairs, the connecting pieces arranged in pairs are arranged at intervals in the X direction, the bearing pieces are connected between the connecting pieces arranged in pairs, the connecting pieces are used for being connected with a frame longitudinal beam, and the bearing pieces are used for being connected with an air compressor; the second mounting assembly is connected to one of the connecting pieces arranged in pairs, the second mounting assembly is arranged on the side, away from the bearing piece, of the connecting piece in the X direction, the second mounting assembly comprises a first mounting piece and a second mounting piece, the first mounting piece and the second mounting piece are sequentially arranged in the Y direction, the first mounting piece is used for being connected with a dryer, and the second mounting piece is used for being connected with the dryer. The second installation part is used for being connected with an air filter. According to the support structure, the space utilization rate can be increased, wiring harness arrangement is simplified, and therefore the safety and reliability of a vehicle are improved.

The invention provides an oil-gas pump all-in-one machine and a vehicle, and the oil-gas pump all-in-one machine comprises a driving motor which is provided with a driving shaft with two output ends; the steering oil pump is connected with a shell of the driving motor, and an input shaft of the steering oil pump is connected with the first end of the driving shaft; an input shaft of the air compressor is connected with the second end of the driving shaft through an electromagnetic clutch; the pressure sensor is connected with the steering oil pump, and the pressure sensor is used for detecting the pressure of an oil outlet of the steering oil pump; the controller is connected with a shell of the driving motor, the controller is electrically connected with the driving motor, the pressure sensor and the electromagnetic clutch, the controller is used for regulating and controlling the rotating speed of the driving motor according to the pressure of the oil outlet, and the controller is further used for controlling combination and separation of the electromagnetic clutch. According to the scheme, dynamic adjustment of the oil pressure of the steering oil pump is achieved, and the technical problem that dynamic control over the oil pressure of the steering oil pump cannot be achieved in the prior art is solved.

The invention relates to an air pressure control system of an automobile braking system, which comprises an air compressor, a control element integrated in the air compressor and used for converting received direct current into three-phase alternating current for driving the air compressor; only a detection assembly and a valve assembly are integrated in the dryer, and the detection assembly is used for obtaining pressure data of the output end of the dryer; and the vehicle control unit is used for acquiring the pressure data sent by the detection assembly and controlling the start and stop of the air compressor and the opening and closing of the valve assembly according to the pressure data. The control piece is directly integrated in the air compressor, meanwhile, an independent controller in a dryer is omitted, unified coordination control is achieved through the whole vehicle controller, the structure of a braking system is remarkably simplified, the hardware cost is reduced, meanwhile, the air compressor integrated with the control piece can achieve autonomous electric conversion, and the electric conversion efficiency is improved. Therefore, one set of system can adapt to different vehicle types without recalibration, and the reliability and universality of the braking system are greatly improved.

Hydraulic unit of an electronically controlled brake system, comprising a modulator block (80) with several receiving bores (164, 181 to 185) in which several valves (64, 81 to 84) and pressure sensors (85a, 85b) coupled to a master cylinder (20) are installed to control hydraulic brake pressure supplied to vehicle wheels, wherein passages (180) connecting the receiving bores are formed in the modulator block (80) and the passages (180) are formed such that they are divided into two layers (P1, P2), wherein the receiving bores (164, 181 to 185), in which an inlet valve (81), an outlet valve (82), a start valve (83), a simulation valve (64), a pressure sensor (85a, 85b) and a switching valve (84) are installed, are formed in one surface of the modulator block (80) and the receiving bore (186), in which a shut-off valve (86) is installed, is formed in the other surface of the modulator block (80), wherein the multiple receiving bores (164, 181 to 185) formed in a surface of the modulator block (80) have installed the inlet valve (81), the outlet valve (82), the start valve (83), the simulation valve (64), the pressure sensors (85a, 85b) and the switching valve (84) in this order.

The present disclosure relates to a disc braking system (10), comprising: a brake disc (12); first and second perforated brake pad arrangements (14,16) each comprising a brake pad (52), and each having a backside (18) facing away from the brake disc (12) and a frontside (20) facing the brake disc (12) and being configured to interact with the brake disc (12) upon the disc braking system (10) being operated; an air blowing arrangement (22) arranged to blow air into a space between the frontsides (20) of the first and second brake pad arrangements (14,16) and the brake disc (12); and an air suction arrangement (24) coupled to the backsides (18) of the first and second brake pad arrangements (14,16) and being controllable to suck dust resulting from braking through the first and second brake pad arrangements (14,16), wherein the air blowing arrangement (22) comprises an expansion valve (26), a perforated plate (28), and a diffuser (30) in series.

The utility model relates to the technical field of automobile brake pumps, in particular to an efficient heat dissipation automobile brake pump which comprises a brake pump body, a plurality of first cooling fins are arranged on the surface of the brake pump body in the front-back direction, and the surface of the brake pump body is connected with a ventilation hood through a plurality of second installation blocks. A semiconductor chilling plate is arranged on the inner wall of the rear portion of the ventilation hood, a second fan is rotationally connected to the inner wall of the ventilation hood through two second fan supports, a shielding block is arranged at the front end of the first mounting block, and a cold air control device is arranged outside the shielding block. After the semiconductor chilling plate is powered on, refrigeration can be conducted on the cold end face of the semiconductor chilling plate, when the brake pump body works, the second fan is started, and cold air can be blown out through the second fan. By means of the heat dissipation mode, corrosion of a shell of the brake pump body cannot be caused, and the service life of the brake pump cannot be affected.

Air preparation unit (102) for a brake system (100) of a commercial vehicle, wherein the air preparation unit (102) has the following features: a foot brake module connection (114) for pneumatic or electrical and pneumatic coupling of the air preparation unit (102) with a foot brake module (116) of the brake system (100); at least one valve unit (110) for applying a control pressure to the foot brake module connection (114) for actuating the foot brake module (116); and a control unit (118) for controlling the valve unit (110), characterized by the fact that wherein the control unit (118) is coupled or can be coupled to at least one wheel speed sensor (122) of the commercial vehicle and is configured to control the valve unit (110) and / or at least one control valve (126; 200) of an anti-lock braking system of the commercial vehicle using a wheel speed sensor signal (124) generated by the wheel speed sensor (122) and wherein the control unit (118) is configured to read / tap speed signals from the same sensor which supplies speed signals to an ABS / or EBS system of the commercial vehicle.

A vehicle air compressor comprises a crankcase having a longitudinal central axis. The vehicle air compressor also comprises a head assembly including (i) a rear face that lies in a plane transverse to the longitudinal central axis of the crankcase, (ii) an air inlet port oriented in the same plane as the rear face, (iii) an air outlet port oriented in the same plane as the rear face, (iv) a coolant inlet port oriented in the same plane as the rear face, and (v) a coolant outlet port oriented in the same plane as the rear face.

A compressor module, in particular for a compressed-air supply system of a vehicle, is connected to or has an electronic control unit. The control unit is configured to specify the target speed as a function of a motor current currently drawn by the speed-controlled brushless electric motor and a specified maximum motor current such that the target speed corresponds to a specified constant speed as long as the motor current currently drawn by the speed-controlled brushless electric motor is lower than the specified maximum motor current and the target speed is adjusted such that the motor current currently drawn by the speed-controlled brushless electric motor corresponds to the specified maximum motor current as long as the motor current currently drawn by the speed-controlled brushless electric motor corresponds at least approximately, that is, within the scope of the control or adjustment precision, to the specified maximum motor current.

One aspect of the invention relates to a method (100) for controlling an electric traction machine of a vehicle, the method (100) comprising, when the vehicle is running, the steps of: - detecting (101) a failure of at least a first pressure sensor or a second pressure sensor of a brake booster of the vehicle, - determining (102) a speed value of the vehicle, - when a failure of at least one of the first pressure sensor or second pressure sensor is detected, determining (103) a torque value to be applied to drive wheels of the vehicle, depending on the determined speed value, to bring the vehicle to a predetermined safety speed value, - applying (104) the determined torque value to the drive wheels.

The invention discloses a heavy truck steering and braking control method, device and equipment and a storage medium, relates to the technical field of motor control, and discloses a heavy truck steering and braking control method which comprises the steps that when the whole truck is under high pressure, the air pressure of an air cylinder and the truck speed are obtained; when the air pressure of the air storage cylinder is smaller than a preset air pressure threshold value, the inflating process of the steering and braking assembly is controlled in a first target rotating speed mode through an inflating control strategy; when the air pressure of the air storage cylinder is larger than a preset air pressure threshold value, the connection state of the clutch is controlled according to the vehicle speed, the motor is controlled to operate in a second target rotating speed mode so as to conduct steering and braking control over the heavy truck, and the motor rotating speed in the first target rotating speed mode is larger than the motor rotating speed in the second target rotating speed mode. According to the scheme, the electric energy waste can be reduced while the part cost of steering and braking control is reduced, and the endurance mileage of the whole vehicle is increased.

An air dryer apparatus is provided for a vehicle air brake charging system. The air dryer apparatus comprises an air dryer governor assembly. The air dryer governor assembly includes a plastic sleeve having an external sleeve surface and an internal sleeve surface that defines a piston bore. The air dryer governor assembly also includes a piston disposed in the piston bore and slidable along the internal sleeve surface between a preset cut-out setting and a preset cut-in setting of the air dryer governor assembly. The air dryer governor assembly further includes one or more ribs disposed on the external sleeve surface to prevent deformation of the plastic sleeve when the piston slides along the internal sleeve surface between the preset cut-out and cut-in settings.

The invention relates to a brake system for a motor vehicle for at least four hydraulically operable wheel brakes (8a-8d), comprising: an electrically operable inlet valve (6a-6d) for each wheel brake; a first electrically operable pressure source (5) and a second electrically operable pressure source (2), the first pressure source (5) and the second pressure source (2) being connected to a brake supply line (13) to which the at least four inlet valves (6a-6d) are connected; and a pressure fluid storage container (4) having a first container chamber (401) and a second container chamber (402), wherein the first pressure source (5) is hydraulically connected to the first container chamber (401), and the second pressure source (2) is hydraulically connected to the second container chamber (402), wherein the pressure fluid storage container (4) comprises a third container chamber (403), and the first pressure source (5) is connected to the third container chamber (403) of the pressure fluid storage container (4) via a first electrically operable separating valve (23).

To provide an electronically rectified machine, particularly an electronically rectified motor having a rotor attached to a rotor shaft that can be operated by rotary motion.SOLUTION: A signal transmitter 24 is provided to detect the rotation angle of a rotor shaft 16, and the signal transmitter has a holding member 28 and a magnet element 26 arranged on the holding member 28. A clamp 40 for fixing the holding member to the rotor shaft acts on a magnet element in the assembled state, and at least one fixing means 50 is formed that prevents the translational movement and the rotational movement of the magnet element relative to the holding member, thereby omitting the known adhesive connection between the magnet element and the holding member.SELECTED DRAWING: Figure 2

The utility model discloses a vehicle. The vehicle comprises a power transfer oil pump; one end of the hydraulic hose is connected with the rotating oil pump; an air outlet of the air compressor is communicated with an air outlet pipe; and the fixing support is at least partially connected with the air outlet pipe, the fixing support is at least partially suitable for being fixedly connected with the engine, the fixing support is provided with an avoiding groove, and the avoiding groove avoids the connecting position of the hydraulic hose and the rotating oil pump. Therefore, the fixing support is provided with the avoiding groove so as to avoid the joint of the hydraulic hose and the rotating oil pump, so that the situation that the joint of the hydraulic hose and the rotating oil pump is blocked by the installation of the fixing support, and consequently the connection of the hydraulic hose and the rotating oil pump is difficult can be prevented; the hydraulic hose can be conveniently connected with the rotating oil pump through an electric tool, and therefore the assembling efficiency and the assembling precision of parts such as the hydraulic hose can be improved.

The application discloses a kind of oil pipe, brake master pump, oil circuit connecting structure and dismounting method, it is related to brake master pump technical field, a kind of oil pipe includes: oil pipe body;Oil needle is sleeved in oil pipe body, oil needle and oil pipe body are communicated;Pressure holding ring is sleeved in the outside of oil pipe body and oil needle;First check valve is movably sleeved in pressure holding ring;First elastic member, one end of first elastic member and oil needle contact, the other end of first elastic member and first check valve contact;Sleeved in the outside of oil pipe body and pressure holding ring is screw nut.The technical effect of the application is that it not only has low complexity degree of sealing operation, and good sealing performance.

A pneumatic system comprises a first compressor and associated first air dryer for supplying dried air to a first set of consumers in a main circuit and a second compressor and associated second air dryer for supplying dried air to at least one further consumer through a subsidiary circuit. A protection valve system is provided in the main circuit between the first air dryer and the first set of consumers. A fluid flow path is provided between the main and subsidiary circuits which is selectively openable or closable by a coupling valve to enable the subsidiary circuit to be supplied with pressurized air from the main circuit or to isolate the main and subsidiary circuits.

A kind of composite brake system, including pump source, first electromagnetic valve, parking brake, brake foot valve group, second electromagnetic valve, wheel brake, shuttle valve and control switch;Pump source forms first liquid filling oil path between first electromagnetic valve and parking brake, pump source forms second liquid filling oil path between brake foot valve group and wheel brake, and third liquid filling oil path is connected between the oil input end and the oil output end of brake foot valve group, and third liquid filling oil path is also connected with a second electromagnetic valve;Second liquid filling oil path is located at the oil output end of brake foot valve group and the input end of third liquid filling oil path that flows into wheel brake forms an oil path intersection, a shuttle valve is arranged in the oil path intersection, and the oil pressure of third liquid filling oil path is greater than the oil pressure of second liquid filling oil path at the oil output end of brake foot valve group;Control switch is used to control the break-on of first electromagnetic valve and the break-off of second electromagnetic valve, so that parking brake and the oil pressure applied from third liquid filling oil path are synchronized to realize wheel brake.

A pneumatic system for a vehicle has an air compressor for pressurizing an air tank. A flow passage extending from compressor is bifurcated to a first valve and to a second valve. The first valve has a first state preventing air from passing to the air tank, and has a second state allowing air to pass to the air tank. In a first mode of operation of the pneumatic system, the first vale is in said first state and the second valve controls air flow from the compressor to ambient environment. The second valve is configured to change to, or remain in, an open state when the pressure of the air upstream of the second valve is higher than a predetermined threshold, and to change to, or remain in, a closed state when the pressure of the air upstream of the second valve is lower than the predetermined threshold.