185results about "Pump/compressor arrangements" patented technology

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 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.

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 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.

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.

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.

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.

The present invention relates to a brake actuator device including a hydraulic valve block formed with a discharge flow passage for discharging air to the outside, an electronic control device supported on one side of the hydraulic valve block and including an electrical equipment housing formed with a vent hole opening in the direction of the discharge flow passage of the hydraulic valve block and connected with an internal space, and a filter attached to the electrical equipment housing to shield the vent hole in a manner allowing air to pass, and a discharge port sealing member for sealing a space between the hydraulic valve block and the electronic control device and surrounding the discharge flow passage, the vent hole and the filter.

Disclosed is a vacuum pump assembly, which relates to vacuum technologies, including a vacuum pump and a rotating nozzle rotatably connected to an intake port of the vacuum pump, an air intaking direction of the rotating nozzle being angled relative to a rotating axis of the rotating nozzle; further including a silencer, the silencer being fixedly mounted at an exhaust port of the vacuum pump, an exhaust pipe being further mounted on an exhaust end of the silencer, the exhaust pipe being configured with a one-way exhaust structure, the vacuum pump being further configured with a vibration-damping pad. By mounting a freely rotatable rotating nozzle at the intake port of the vacuum pump assembly according to the disclosure, the initial intake direction can be changed by turning the rotating nozzle, which facilitates arranging the vacuum tube between the vacuum pump assembly and the vacuum booster. By arranging the silencer and the one-way exhaust structure, this disclosure can effectively reduce operating noise of the vacuum pump assembly and effectively prevent foreign contaminants from entering the vacuum pump assembly. By arranging the vibration-damping pad, this disclosure can effectively reduce vibration of the running vacuum pump assembly to enhance vehicle comfort.

The utility model relates to the technical field of vehicle air treatment devices, and discloses a vehicle integrated installation type air treatment unit which comprises an installation base, one side of the installation base is detachably connected with an installation cover, an installation space is formed between the installation cover and the installation base, and an air compressor is fixedly arranged at the position, located in the installation space, of the installation base. The air compressor is connected with a condenser pipe, the condenser pipe is connected with a condenser, the condenser is connected with an air dryer, the air dryer is connected with a protection valve body, the installation base is provided with an air storage tank located on the outer side of the installation space, the air storage tank is connected with the protection valve body, and a connecting piece is arranged between the air storage tank and the installation base. And the connecting piece is detachably connected with the mounting base and the gas storage tank. The air treatment device has the effects that the air treatment units are arranged in a centralized manner, pipeline connection is reduced, and occupied space is reduced.

A system and method for slowing a vehicle. Road conditions around a vehicle are monitored to determine whether the road conditions are hazardous. An engine control unit is notified of the hazardous road conditions and modifies operation of the engine control unit in response to the hazardous road conditions. When an operator of the vehicle wishes to slow the vehicle, an indication is received indicating an intent to slow the vehicle. Thereafter, the vehicle is slowed based on the modified operation of the engine control unit by applying a vacuum to increase a vacuum in a manifold of the engine.

Hydraulic assembly for a vehicle braking system (100) with at least two brake circuits (102, 104) and wheel brakes (106, 108, 110, 112) assigned to the brake circuits (102, 104), wherein the hydraulic assembly comprises the following: a pressure generator (116) for the driver-independent generation of a central hydraulic pressure for the brake circuits (102, 104) at least during a service braking initiated by a driver; and at least one pressure adjustment device (134) for brake circuit-specific adjustment of the central hydraulic pressure generated by the pressure generator (116) independently of the driver, characterized in that the components included by the hydraulic assembly are assembled to form the hydraulic assembly and the hydraulic assembly as a whole can be mounted in the vehicle.

The utility model is suitable for brake assembly technical field provides a kind of automobile vacuum pump power brake assembly, including: automobile vacuum pump, brake assembly and connecting mechanism, brake assembly is connected and fixed on automobile vacuum pump by connecting mechanism, and connecting mechanism is located between automobile vacuum pump, brake assembly.In the scheme, the support cylinder, the abutment cylinder are mutually butted by the tensioning unit in connecting mechanism and the inclined plane of both can slide towards each other, and then the support cylinder, the abutment cylinder produce partial misplacement, and then the support cylinder, the abutment cylinder whole can be locked in the through hole of docking frame, eliminate assembly tolerance, realize the clearance-free cooperation with through hole, completely solve the slippage problem caused by tolerance of traditional threaded connection, and the inclined plane structure will produce self-reinforcing effect under vibration condition, compared with ordinary nut fixing mode, the anti-loosening ability is greatly improved, simple, efficient and practical, effectively eliminate the security risk.

The present invention provides a brake control device suitable for reducing the number of electromagnetic valves and achieving cost savings. A shut-off valve of a first hydraulic pressure unit is controlled by both a first control unit and a second control unit.

A piston pump according to an embodiment of the present invention comprises, as one example: a motor that has a motor shaft extending in a first axial direction along the central axis, and is disposed such that the first axial direction intersects with the vertical direction; and a housing that has a first inner surface defining a cam chamber and a second inner surface defining a liquid storage chamber linked with the lower end of the cam chamber. The first inner surface has an inner circumferential surface extending around the central axis. The liquid storage chamber has a first room that is open to the lower end of the inner circumferential surface, and a second room that is open to the lower end of the inner circumferential surface and is linked with the end of the first room in the first axial direction. The first room extends further downward as compared to the second room from the lower end of the inner circumferential surface, and the maximum length around the central axis is larger than that of the second room.

The invention relates to a method for controlling a redundant hydraulic motor vehicle braking system, comprising a first electrical pressure supply device (5), which is designed as a linear actuator, which can be connected to at least one hydraulic wheel brake (8) via an electrically switchable normally open isolation valve (26), and a second electrical pressure supply device (2), which is designed as a piston pump, which can be connected to the hydraulic wheel brake (8), wherein pressure is supplied by the piston pump (2) when the isolation valve (26) is closed and the pressure position is transferred to the linear actuator (5). To ensure that this transfer is carried out without errors, an opening routine for the isolation valve (26) is performed, comprising a pressure build-up using the linear actuator (5) to reduce the pressure difference across the isolation valve (26) and a de-energizing of the isolation valve (26), wherein the current switching state of the isolation valve (26) is subsequently determined by actuating the linear actuator (5) to perform a reverse movement, whereby a relationship between a motor torque quantity and a position quantity of the linear actuator (5) is determined and compared with an expected behavior for an open and / or a closed isolation valve (26).

The invention relates to a hydraulic power unit (10), in particular for generating and controlling brake pressure in an electronically controlled braking system of a motor vehicle. Known hydraulic power units (10) have a housing block (12) with a pump receptacle (18) in which an actuated pump element (24) is arranged. This pump element (24) has a pump piston (28) that can be driven to a stroke movement and is guided and sealed in the pump receptacle (18) by means of a sealing / guiding device (34). According to the invention, the sealing / guiding device (34) has a form-elastic positioning element (38) by which a sealing ring (343) of the sealing / guiding arrangement (34) is pressed at least indirectly against a guide element (341) of the sealing / guiding device (34) with a variable axial force.

The present invention relates to a method (300) for regenerating a filter device (115) configured to collect and store brake particles (212) generated by a friction brake (110). The method (300) includes determining (301) the existence of at least one boundary condition that enables and / or permits regeneration of the filter device (115). Furthermore, the method (300) includes, in response to this, removing (302) the brake particles (212) stored in the filter device (115).

The invention relates to a compressor module (10), in particular for a compressed-air supply system (20) of a vehicle. The compressor module (10) is connected to an electronic control unit (100) or comprises same. The electronic control unit (100) is designed to specify the target rotational speed (nsoll) depending on a motor current (IB) currently being consumed by the rotational-speed-controlled brushless electric motor (14) and a specified maximum motor current (IBmax) in such a way that the target rotational speed corresponds to a specified constant rotational speed (nconst) provided the motor current (IB) currently being consumed by the rotational-speed-controlled brushless electric motor (14) is lower than the specified maximum motor current (IBmax), and the target speed is updated in such a way that the motor current (IB) currently being consumed by the rotational-speed-controlled brushless electric motor (14) corresponds to the specified maximum motor current (IBmax) provided the motor current (IB) currently being consumed by the rotational-speed-controlled brushless electric motor (14) corresponds at least approximately (that is to say in the context of control and tracking accuracy) to the specified maximum motor current (IBmax).