791results about "Brake cooling" patented technology

A vehicle control system for a vehicle may include a brake assembly for applying negative torque to one or more wheels of the vehicle, a grill shutter assembly that directs airflow over the brake assembly when opened, and prevents airflow toward the brake assembly when closed, and a controller that calculates a target brake temperature, the controller being operably coupled to the grill shutter assembly to control positioning of the grill shutter assembly based on a comparison between a current brake temperature to the target brake temperature.

An air cooled resistor arrangement comprising a first elongated tube member forming a first air flow channel and a second elongated tube member forming a second air flow channel, wherein the first elongated tube member is at least partly housed inside the second elongated tube member. The air-cooled resistor arrangement further comprises an air dilution portion comprising at least one opening at which the first air flow channel is arranged in fluid communication with the second air flow channel.

The invention discloses a thermal management method and device of a brake disc, computer equipment and a storage medium. The thermal management method of the brake disc comprises the steps that a whole vehicle fluid mechanics model is used for calculating convective heat transfer coefficients of all positions on the brake disc at the current vehicle braking moment; obtaining the temperature of each position on the brake disc at the current vehicle braking moment and the vehicle speed at the current vehicle braking moment; according to the convective heat transfer coefficient and the temperature of each position on the brake disc and the vehicle speed of the vehicle, the temperature variation of each position on the brake disc is calculated; predicting a temperature peak value on the brake disc at the next moment according to the temperature variation and the temperature of each position on the brake disc; and when the temperature peak value on the brake disc at the next moment does not meet the preset temperature condition, a cooling system of the vehicle is controlled to cool the brake disc till the temperature peak value on the brake disc meets the preset temperature condition. According to the method, the heat dissipation effect of the brake disc is enhanced.

In a disc brake (2) with a brake disc (1) having a virtual main disc plane (11), a disc hub (3), and two friction rings (5, 6) mounted on the disc hub (3) so as to be non-rotatable about an axis of rotation (4), arranged at an axial distance (8) from each other forming a cooling gap (7), and provided with holes (9, 10), the holes (9, 10) through the friction rings (5, 6) each extend at an angle (19) between 20° and 70° to the main disc plane (11). Viewed from the cooling gap (7), either all holes (9, 10) through both friction rings (5, 6) extend away from the axis of rotation (4) or all holes (9, 10) through both friction rings (5, 6) extend towards the axis of rotation (4).

The invention discloses a commercial vehicle thermal management system and a control method thereof.The system comprises an electric control unit, an engine cooling loop, a hydraulic retarder cooling loop, a cooling loop on-off unit and a temperature detection unit, and the cooling loop on-off unit is used for connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop and / or connecting and disconnecting the hydraulic retarder cooling loop and the engine cooling loop; the cooling loop on-off unit is used for bypassing a hydraulic retarder cooling loop; the temperature detection unit is used for detecting the environment temperature, the cooling liquid temperature and / or the cylinder cover temperature. The electric control unit controls the heat management valve, the electronic water pump, the electronic fan and the air inlet grid switch according to temperature signals. And the electric control unit controls the cooling loop on-off unit according to the working state of the hydraulic retarder so as to connect and disconnect the hydraulic retarder cooling loop and the engine cooling loop. Therefore, the engine and the hydraulic retarder share one set of cooling loop, and the cooling loop is switched on and off according to the working state of the hydraulic retarder, so that the vehicle has good heat dissipation performance.

A braking system for a vehicle is disclosed. The braking system includes friction members operable to provoke braking of the vehicle, a cooling duct extending between an air inlet for the intake of outside air and an outlet opening for discharging the air, wherein at least one of the friction members is arranged in the cooling duct, a filter duct extending between an inlet communicating with the outlet opening and an outlet to the external environment with a first and a second branch arranged in parallel, a valve comprising an element and controllable according to a first configuration in which the element at least partially obstructs the first branch and clears the second branch, and a second configuration in which the element at least partially obstructs the second branch and clears the first branch, and an actuator configured to drive the valve in response to the braking of the vehicle.

A control unit for electromechanical brake system is provided, which relates to vehicle brake technology. The present invention facilitates the assembling of braking energy storage module and brake system control module and improves the heat dissipation, structural strength, anti-vibration and compactness of the control unit. The control unit comprises: a housing; and a frame plate, a braking energy storage module and a brake system control module, which are configured in the housing, wherein the braking energy storage module and the brake system control module are respectively arranged at two opposite sides of the frame plate.

A wheel cover (100) for a vehicle wheel is disclosed. The wheel cover (100) includes a plurality of rows of openings (202), each row having at least two radially arranged openings (202). A plurality of flaps (104) are pivotally configured with each of the at least two openings (202). Each flap (104) is biased to remain in a closed position to close the corresponding opening (202) and thus ensure an aerodynamic profile of the wheel cover (100), and to move to an open position to allow air to flow through the corresponding opening (202) to cool one or more brake components located in the wheel. The wheel cover (100) includes an actuation assembly (400) that operates based on a rack and pinion arrangement to enable gradual opening of the flaps (104) based on an increase in the operating temperature of the brake components.

A front frame assembly for a motor vehicle includes a suspension attachment structure fixable to a body cell, one or more attachment elements fixed relative to the suspension attachment structure to allow a suspension of the motor vehicle to be coupled to the suspension attachment structure, and an absorption element to absorb a front crash of the motor vehicle, the absorption element being fixed relative to the suspension attachment structure and extending in a projecting manner relative to the suspension attachment structure along a first straight axis until ending with one end opposite the suspension attachment structure, wherein the assembly comprises a channel extending with continuity through the absorption element and the suspension attachment structure between an inlet opening obtained at the end along the first axis and an outlet opening obtained in the suspension attachment structure along a second axis transversal to the first axis.

The invention discloses an axle staged cooling system, an axle staged cooling assembly and an engineering vehicle. The axle staged cooling system comprises an engine first-stage cooling system, an engine second-stage cooling system, an axle first-stage cooling system and an axle second-stage cooling system. Each stage of cooling system controls cooling water and oil path trend through a thermolator in each loop, controls axle cooling oil and engine cooling water to exchange heat, and meets different cooling requirements of an axle. The temperature sensor in each loop outputs water and oil temperature signals to a motor of the cooling fan, so that the rotating speed of the fan is increased to different degrees along with the temperature rise of each cooling system, and different cooling powers are matched. According to the grading system, the engine and the axles can work at the proper temperature at the same time, the two heat exchangers cool cooling oil of the front axle, cooling oil of the middle axle and cooling oil of the rear axle respectively, the cooling capacity of the front axle is improved, the braking effectiveness of the front axle is guaranteed, and rollover caused by serious backward movement of the gravity center of a vehicle during emergency braking is prevented.

An air cooled resistor arrangement, comprising a resistor housing comprising an air inlet, an air outlet, a first side wall extending from the air inlet to the air outlet, and a second side wall extending from the air inlet to the air outlet on an opposite side to the first side wall, a plurality of elongated resistor elements arranged in the resistor housing, each one of the elongated resistor elements extending from the first side wall to the second side wall, wherein the plurality of elongated resistor elements is arranged in columns along a direction between the air inlet and the air outlet, wherein each one of the plurality of elongated resistor elements is arranged equidistantly to all its neighboring elongated resistor elements.

The invention relates to a braking device (10) for a motor vehicle with a fluid path (12) through which a fluid can flow and which has at least two line sections (14, 16), in which at least one pump element (18) and at least one valve device (34) which has a valve inlet (26) and a valve outlet (28) and which can be moved between at least two valve positions (30, 32) is arranged, wherein the valve device is fluidically connected to the pump element (18) via the valve inlet (26) by means of a first of the line sections (14), with a retarder (38), which has a stator (40), a rotor (42) and a retarder inlet (44), via which the retarder (38) is fluidically connected to the valve device (34) by means of the second of the line sections (16) via the valve outlet (28), wherein in a first of the valve positions (30) the valve inlet (26) is fluidically connected to the valve outlet (28) and in the second valve position (32) the valve inlet (26) is not fluidically connected to the valve outlet (28).

The invention discloses a water-cooling and air-cooling combined heat dissipation type double-brake system and a brake control method, and the brake system comprises brake discs arranged corresponding to wheels; the two brake execution assemblies are arranged on the two sides of the brake disc correspondingly, each brake execution assembly is provided with a plurality of brake pad sets arranged in the circumferential direction of the brake disc, and the brake pad sets are driven by hydraulic assistance generated by a hydraulic booster to be pressed on the surface of the brake disc so as to execute the braking action; a heat dissipation air opening penetrating through the inside and the outside is formed in the brake execution assembly; the double-atomization assembly is borne by the brake execution assemblies and used for supplying wind power and atomized water into the brake execution assemblies; the double-atomization assembly comprises a mounting shell sleeve; the atomizing nozzle is connected with a high-pressure water pump; a high-speed fan; a temperature sensor; and a main controller. The braking force can be greatly increased, the braking effect is improved, heat dissipation is uniform, and the excellent heat dissipation effect is achieved.

The invention relates to the technical field of automobile brake control, and discloses an automobile brake cooling improvement control system which comprises a parameter acquisition unit, a data processing unit, a data evaluation unit and a comprehensive processing unit. Key data of the brake disc are comprehensively collected, and a detailed basis is provided for system operation; a temperature difference coefficient and a heat dissipation efficiency correction coefficient are accurately extracted, the auxiliary data evaluation unit determines the temperature distribution condition of the brake disc and the environment heat dissipation state in combination with threshold judgment, a compensation algorithm is started to determine the effective temperature when the temperature is uneven, and a high-load cooling mode is triggered when the environment is unfavorable for heat dissipation; a thermal load index is calculated according to the effective temperature, the brake pressure and the vehicle speed, different load cooling modes are triggered in a graded mode according to the thermal load index, and the rotating speed of a cooling fan and the opening degree of a flow guide plate are accurately regulated; and by analyzing the thermal load trend, the cooling mode grade is intelligently adjusted, the intelligence, high efficiency and safety of the brake cooling system are comprehensively improved, and the stability of the brake performance of the vehicle is effectively guaranteed.

The present invention discloses a vehicle braking control method and system under long downhill conditions. The method includes the following steps: obtaining the vehicle's slope driving condition and the vehicle's braking energy recovery attribute; when the vehicle does not have the braking energy recovery function or the vehicle has the braking energy recovery function but is in the energy recovery exit state, obtaining the vehicle's operating condition; when the vehicle's required deceleration is less than the preset deceleration and the temperature rise of the rear brake disc is less than the first preset temperature rise, controlling to cut off the hydraulic input of the front and rear wheels and enter the dynamic braking mode that preferentially brakes the rear wheels; obtaining the condition that satisfies the dynamic braking mode exit condition; when the dynamic braking mode exit condition is satisfied, controlling to exit the dynamic braking mode and enter the hydraulic braking mode of simultaneous braking of the front and rear wheels. The vehicle braking control method under long downhill conditions provided by this application effectively solves the problem that the temperature rise of the front brake disc is too fast relative to the rear brake disc, and avoids the excessive temperature rise of the front brake disc from affecting the braking effect.

The invention relates to the field of pipe jacking construction, in particular to a pipe jacking construction transportation rail blocking device which comprises a transportation rail and a transportation vehicle, wheels are symmetrically installed at the bottom of the transportation vehicle, each wheel is slidably connected to the transportation rail, brake discs are symmetrically and fixedly installed at the bottom of the transportation vehicle, and the brake discs are slidably connected to the transportation rail. Each brake disc is located on the two sides of the corresponding adjacent wheel, and a cooling assembly is fixedly installed on the side wall of each barrier plate. By arranging the buffering assemblies, after a vehicle body of the transport vehicle makes contact with two first baffles, first springs can be compressed to get close to a barrier plate, then wheels enter the position between the two buffering plates, and in the process of getting close to the barrier plate, friction force is continuously enhanced through gradually-dense second friction blocks, so that the transport vehicle is braked; and then the wheels of the transport vehicle are in contact friction braking with the second friction block and the first friction block again, so that the transport vehicle is braked slowly in the braking process.

The invention belongs to the technical field of engineering machinery, and discloses a transmission system and engineering machinery. The transmission system comprises an integrated shell, a motor assembly, a brake assembly and a speed reducer assembly, the motor assembly, the brake assembly and the speed reducer assembly are arranged in the integrated shell and distributed in the first direction, an output piece of the motor assembly is in transmission connection with an input piece of the speed reducer assembly through the brake assembly, and an output piece of the speed reducer assembly is connected with the hub. The integrated shell is provided with a cooling channel set, and the cooling channel set can conduct heat dissipation on the motor assembly, the brake assembly and the speed reducer assembly at the same time. By arranging the integrated shell, the structure of a transmission system can be simplified, the cost can be reduced, the machining consistency is good, the supporting rigidity is better, and transmission errors caused by structural deformation are reduced; the cooling channel group is arranged on the integrated shell, so that the motor assembly, the brake assembly and the speed reducer assembly can be cooled at the same time by only one cooling system, the utilization rate of the cooling system is improved, the cooling efficiency is high, and the service life of the system is prolonged.

The present invention relates to an electromechanical braking device (1) for a motor vehicle, comprising at least one electric brake actuator (4) with a brake element (32) which is adjustable and can be brought into brake engagement with a counter-brake element (2), wherein the brake actuator (4) can be controlled by an electric control unit (100). In order to enable improved operational reliability in continuous operation, the invention proposes that the control unit (100) be integrated with the brake actuator (4) and that a heat dissipation element (45) be thermally coupled to the control unit (100), which is thermally conductively connected to or has an exposed outer surface (46) of the brake actuator (4).

A braking band of a disc brake disc has two mutually facing plates having inner surfaces, either directly or indirectly facing and delimiting a gap, outer surfaces having flat and opposite circumferential portions which form braking surfaces and plate bodies having a predetermined plate thickness. The plates are joined to each other by connecting elements shaped as columns or ribs which project from one plate towards an opposite plate in the form of bridges which connect the plates. One of the plates has at least one ridge projecting from the plate into the gap without reaching the opposite plate, forming a localized narrowing of the gap and a thickening of the plate body. At least one ridge extends from a connecting element to an adjacent connecting element, connecting the connecting elements. At least one ridge extends along a circumferential direction connecting two adjacent connecting elements.

A wheel cap, comprising: an inner side, for attaching the wheel cap to a wheel rim of a wheel; a peripheral edge, coaxial with a central axis of the wheel cap; an outer face, opposite to the inner side, wherein the outer face is delineated by the peripheral edge and comprises a peripheral portion and a central portion, centered on the central axis; and openings, connecting the peripheral portion to the inner side. The outer face is concave, so that: the central portion is recessed inwards relative to the peripheral portion along the central axis; and the peripheral portion is recessed inwards relative to the peripheral edge along the central axis.

The invention provides an electric driving and electric braking integrated system and a control method thereof.The integrated system is assembled on the rim of a single wheel and comprises a wheel control assembly, a hub motor assembly, an electronic mechanical braking assembly, an energy consumption braking unit and an energy assembly; the wheel control assembly is used for recognizing the current whole vehicle driving intention based on the obtained whole vehicle information, and then a wheel side driving / braking torque target value is obtained through calculation so as to control the hub motor assembly and / or the electronic mechanical braking assembly to conduct driving / braking control on a single wheel where the hub motor assembly and / or the electronic mechanical braking assembly are located. And the control unit is also used for controlling the energy consumption braking unit to run to consume electric energy generated by regenerative braking of the hub motor assembly when the whole vehicle is in the braking state and the actual charge state monitored by the energy assembly is larger than the charge state threshold value.

The invention relates to the technical field of automobile hub manufacturing, in particular to an automobile hub capable of actively reducing wind resistance. Comprising a wheel rim, a spoke frame is fixedly connected to the wheel rim, a transmission rod is fixedly connected to the spoke frame, a friction disc is fixedly connected to the transmission rod, calipers are arranged on the friction disc, the transmission rod is rotationally connected with a limiting plate, a wind blocking frame is fixedly connected to the limiting plate, and a supporting ring is fixedly connected to the wind blocking frame. The supporting ring is rotationally connected with the wheel rim, the transmission rod is slidably connected with extrusion frames distributed in an array mode in the circumferential direction, and tension springs distributed in a mirror image mode are arranged between the extrusion frames and the transmission rod. According to the hub, the air blocking frame is matched with the spoke frame, the air inlet state of the rim is adaptively switched according to the specific driving state of an automobile, so that the hub gives consideration to'low wind resistance 'at high moving speed and'efficient heat dissipation' at medium and low moving speed, and the stability of an automobile braking system is guaranteed while the endurance of the automobile is improved.

The invention belongs to the technical field of vehicle braking, and discloses a temperature-controllable braking device and method applied to a vehicle. The device comprises a brake module and a heat dissipation module matched with the brake module. The brake module comprises a telescopic rod, a heat dissipation support, a brake pad, a clamping piece and a locking piece which are matched with one another so as to achieve braking, preliminary heat dissipation and quick replacement of the brake pad. The heat dissipation module comprises a first heat dissipation part and a second heat dissipation part; the first heat dissipation part comprises a temperature sensing pipe, a coil spring pipe, a transmission rod and an adjusting valve so that liquid cooling of the brake pad can be achieved. The second heat dissipation part comprises a supporting frame, a fan and a controller so that air cooling of the brake pad can be achieved. Effective heat dissipation of the vehicle brake structure is achieved through combination of multiple heat dissipation modes, and therefore the brake stability and the brake reliability are improved.

The invention provides a cooling and drainage system, a vehicle and a vehicle regulation and control method, and relates to the field of electric vehicles. The cooling and drainage system comprises a first cooling and drainage mechanism, a second cooling and drainage mechanism and a third cooling and drainage mechanism. The first cooling drainage mechanism comprises a radiator and a wet air reservoir, an input port of the radiator is communicated with the air compressor, an output port of the radiator is communicated with an inlet of the wet air reservoir, and the wet air reservoir is provided with a first drainage valve; an air inlet of a separator in the second cooling drainage mechanism is communicated with an outlet of the wet air storage cylinder, a flow guide assembly and a collector are installed in the separator, and the flow guide assembly is communicated with the air inlet of the separator and the collector; the third cooling drainage mechanism comprises a dryer and a regeneration cylinder, the dryer is communicated with the air outlet of the separator and the regeneration cylinder, and the regeneration cylinder is provided with a second drainage valve. According to the cooling and drainage system, the technical problem that in the prior art, heat generated by exhaust of an air compressor cannot be discharged in time is solved.

The invention relates to a brake device 1 for a vehicle 2, comprising a shaft 3, a brake drum 5, wherein the brake drum 5 is rotationally fixed to and / or connectable to the shaft, a brake section 6, wherein the brake section 6 comprises at least one brake shoe 7 and a brake actuator 8, wherein the brake actuator 8 is configured to press the brake shoe 7 from the inside against the brake drum 5, so that a friction area 10 is formed between the brake shoe 7 and the brake drum 5, wherein the brake device 1 forms a drum chamber 11, wherein the friction area 10 is arranged in the drum chamber 11, wherein the drum chamber 11 is a wet chamber for receiving a coolant and / or the brake device 1 is configured as a wet brake device.

A brake or clutch device, comprising a housing (2) with a disk pack (4) arranged in the housing interior (3), comprising an outer disk carrier (7) with at least one outer disk (8) arranged thereon for axial movement and an inner disk carrier (9) with at least one inner disk (10) arranged thereon for axial movement, and a coolant receiving chamber (12) provided on the housing (2) for receiving a coolant (27) to be supplied to the disk pack (4), wherein the coolant receiving chamber (12), which can be filled with the coolant (27) via an external coolant supply device connectable to a connection means (15) of the coolant receiving chamber (12), is arranged above the disk pack (4) and communicates with the housing interior (3) via at least one opening (18) in such a way that the coolant (27) flows onto the disk pack (4) due to gravity when the opening (18) is open.

The invention relates to a device (100) for heat distribution for a motor vehicle (200). The device (100) comprises a fuel cell (1), a braking resistor (2) for converting electrical energy into heat energy, and a temperature control circuit (10) through which a temperature control fluid flows for temperature control of the fuel cell (1) and the braking resistor (2). The temperature control circuit (10) is thermally coupled to the fuel cell (1) and the braking resistor (2) and has a main heat exchanger (14) through which air can flow and a switchable auxiliary heat exchanger (16), preferably also through which air can flow, such that preferably the fuel cell (1) and the braking resistor (2) can be thermally coupled via the temperature control circuit (10) either to the main heat exchanger (14) and auxiliary heat exchanger (16) or only to the main heat exchanger (14), wherein: The temperature control circuit (10) has a piping system (11) and a valve assembly (13) in the piping system (11), wherein the valve assembly (13) is adjustable to several different settings for adjusting the flow of the temperature control fluid within the temperature control circuit (10), including: a high-load setting in which both the main heat exchanger (14) and the auxiliary heat exchanger (16) can be supplied with the temperature control fluid, wherein in the high-load setting the main heat exchanger (14) and the auxiliary heat exchanger (16) can be connected either in parallel or in series to each other, preferably by means of the valve assembly (13).