3618results about "Propulsion cooling" patented technology

The invention relates to the technical field of electric vehicle thermal management, discloses an electric vehicle motor and driver integrated intelligent cooling system and a control method, and aims at solving the problems that an existing motor driver thermal management system is low in cooling efficiency, high in energy consumption, complex and insufficient in space utilization rate. The method comprises the following steps: acquiring operation, thermal state and environment data; constructing a collaborative thermal model and predicting a thermal load; generating an optimal cooling strategy based on the predicted value and the target; the cooling liquid pump, the three-way valve and the cooling fan are adjusted, and cooling resources are dynamically distributed to achieve collaborative cooling. The system comprises a data acquisition module, a collaborative thermal model construction prediction module, an intelligent decision control module and an integrated cooling circulation execution module. By the adoption of the technical scheme, the cooling performance can be effectively improved, system energy consumption and complexity are reduced, space layout is optimized, the service life of parts is prolonged, and the reliability, the power performance and the endurance of the whole vehicle are improved.

The invention provides an axial magnetic flux motor driven RV speed reduction driving assembly which comprises an axial magnetic flux motor unit and an RV speed reducer unit which are connected, the axial magnetic flux motor unit and the RV speed reducer unit are integrated in a shell, the axial magnetic flux motor unit comprises a plurality of stators which are distributed in an annular mode, and the stators are connected with the axial magnetic flux motor unit. A stator is arranged on the rotor, a disc type rotor is arranged on each of the two sides of the stator, a plurality of torsion bars which are uniformly distributed in the circumferential direction are arranged on the rotor facing the side where the RV speed reducer unit is located, the torsion bars are connected with a sun gear of a planetary gear train of the RV speed reducer unit, and an output disc of the RV speed reducer unit is a power output end. The RV speed reduction driving assembly driven by the axial magnetic flux motor has the advantages of being large in starting torque, high in mechanical efficiency, compact in structure, high in overload capacity and the like.

A frame module and a modular frame of an electric vehicle extend along a longitudinal direction. The frame module has a longitudinally extending central partition wall, a front wall and a rear wall, a battery storage structure having first and second battery storage compartments provided on opposite sides of the central partition wall, each battery storage compartment being configured to receive at least one battery module and being delimited by the central partition wall and longitudinally extending first and second side walls of the frame module, respectively. The first and second side walls are releasably mounted to the battery storage structure to enable opening of the first and second battery storage compartments, respectively.

A dozer including a cabin, the dozer includes: an engine room located in front of the cabin, where an engine is disposed; an exhaust gas after-treatment device for purifying exhaust gases emitted from the engine; a first cooling device located in front of the cabin and capable of cooling the exhaust gas after-treatment device; and a second cooling device spaced apart from the first cooling device, with the cabin midway therebetween, and capable of cooling the engine.

A vehicle includes: a vehicle body; a support structure that is connected to the vehicle body and which is configured to provide a framework for one or more thermal components of the vehicle; a reinforcement member that is connected to the vehicle body and which is configured to absorb impact forces; and an airflow regulation assembly that includes an active grille shutter. The active grille shutter is mechanically connected to the reinforcement member such that the reinforcement member directly supports the active grille shutter in an elevated position (e.g., vertically above the reinforcement member).

A vehicle control system and method based on an air flow rate, control introduction of outside air based on an estimated driving current value of a blowing device, obtained through a current model preset based on a calm wind state, and an estimated air flow rate value of an inlet, obtained through an air flow rate model preset based on an outside wind state.

The invention relates to the technical field of new energy automobile heat management, and belongs to an indirect heat pump heat management system for a new energy automobile. Battery outlet water and warm core outlet water are converged and then shunted through a waterway integration mode of a five-way valve and a proportional three-way valve, and the flow is distributed through the proportional three-way valve; the mixed water enters the battery to control the water inlet temperature of the battery, so that a water-water heat exchanger can be saved, and the effects of reducing cost and improving efficiency are achieved; on the aspect of the agent side, a large-diameter electronic expansion valve is arranged at an outlet of the water-cooling condenser, the internal flow and state of the water-cooling condenser are actively controlled by adjusting the opening degree of the large-diameter electronic expansion valve, the supercooling degree can be increased, the superheat degree can be restrained, the heat exchange capacity and the accurate control capacity can be enhanced, and heating and dehumidification outlet air temperature control in spring and autumn can be better achieved.

The invention provides a motor control method and a vehicle, and relates to the field of vehicles, and the method comprises the steps: determining historical operation data of the vehicle, namely, a historical load time sequence and a historical temperature time sequence of a motor; on the basis of historical operation data, the change characteristics of the load and temperature of the motor under different time scales are determined through a specified characteristic extraction network, and the comprehensiveness of the change characteristics is improved; predicting the load and the temperature of the motor according to the historical operation data and the change characteristics to obtain a target prediction time sequence, namely, a prediction load time sequence and a prediction temperature time sequence; and distributing the target direct-axis current and the target quadrature-axis current to the motor according to the target prediction time sequence. According to the method, the future load and temperature are predicted based on the historical load and temperature of the motor, the quadrature-direct axis current of the motor is distributed according to the future load and temperature, the distribution reasonability of the quadrature-direct axis current is ensured, the operation efficiency of the motor is improved under the condition that the torque requirement is met, and the vehicle performance, efficiency, driving experience and cruising ability are improved.

An air guiding device of a motor vehicle body of a motor vehicle includes a slat assembly. The slat assembly possesses at least two slats which are arranged in a frame of the air guiding device in a manner which permits them to rotate around their rotational axis. To avoid deformation of the slat assembly, the slat assembly includes at least one support element, which extends along the rotational axis.

A drive assembly includes: a reduction gearbox including a reduction gearbox housing, a reduction gearbox input shaft, and a reduction gearbox output component, the reduction gearbox input shaft and the reduction gearbox output component being drivingly connected to each other and arranged in the reduction gearbox housing; a motor including a motor housing, a motor stator, and a motor rotor, the motor stator being arranged in the motor housing and fixedly connected to the motor housing, the motor rotor being arranged in the motor stator, the motor rotor including a motor output shaft drivingly connected to the reduction gearbox input shaft; and an axle including an axle housing and an axle input shaft arranged in the axle housing, the axle input shaft being drivingly connected w the reduction gearbox output component. The motor housing and the axle housing are fixedly connected to the reduction gearbox housing.

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.

The invention discloses a hybrid power vehicle collaborative thermal management method and system based on energy flow intelligent perception. The method comprises the following steps: sensing and predicting multi-dimensional energy flow characteristics of an engine in real time through a pre-trained time sequence neural network model; the predicted value is used as a feedforward signal, real-time temperature feedback of the power battery is combined, and a thermal management cooperative control instruction is generated through feedforward-feedback cooperative decision logic; and finally, a heat exchange path between the engine cooling system and the battery heat management system and respective execution mechanisms are dynamically adjusted, so that prospective active cooperative temperature control is realized. The problems of passive response, control delay and low energy efficiency of an existing thermal management system are solved, and accurate and efficient two-way optimization management of the thermal states of the engine and the battery is achieved.

The invention discloses a thermal management optimization method and system for a vehicle frequent start-stop working condition, and relates to the technical field of new energy vehicle thermal management, and the method comprises the following steps: collecting vehicle real-time operation data, extracting start-stop characteristics, carrying out the classification and real-time recognition of a current start-stop mode based on the start-stop characteristics, and obtaining the current start-stop mode; predicting the parking duration in combination with the current start-stop mode and the vehicle position information; the power of the cooling system is gradually reduced in a staged mode in the parking process, the power of the cooling system is gradually increased in a staged mode in the starting process, and anti-impact control is executed; and dynamically adjusting the energy distribution priorities of a battery, a motor and a passenger cabin according to the current parking working condition or driving working condition of the vehicle, and performing energy recycling when braking energy recovery or residual cooling capacity exists. Start-stop feature vectors are constructed by collecting vehicle speed, start-stop position features and load states, so that accurate judgment of actual working conditions can be kept in a frequent start-stop environment.

A battery case that accommodates a battery for an electric vehicle includes a pair of side frames that constitute left and right side walls of the battery case in a vehicle width direction and extend along a vehicle front-rear direction, a cross member that partitions an internal space of the battery case in the vehicle front-rear direction and extends from one of the side frames to the other side frame, and a side bracket that is fixed to an outer surface of the side frame and is configured to attach the battery case to a vehicle body. The side frame includes a frame rib extending in the vehicle width direction inside the side frame and the side bracket includes a bracket rib extending in the vehicle width direction inside the side bracket.

An electric recreational vehicle, has: a frame extending along a longitudinal axis; an electric motor mounted to the frame; a battery pack mounted to the frame and disposed at least partially rearward of the electric motor relative to the longitudinal axis, the battery pack including one or more battery modules operatively connected to the electric motor for supplying electrical energy to the electric motor, a battery enclosure containing the one or more battery modules, and at least one structural member located within the battery enclosure and delimiting at least one module-receiving section, the one or more battery modules located within the at least one module-receiving section; and a seat disposed over the battery pack and secured to the at least one structural member of the battery pack, a load transmission path extending between the frame and the seat through the at least one structural member of the battery pack.

[Problem] Reduction of the stirring resistance that arises in a motor in a coolant circulation system in which an oil-containing coolant circulates to cool and lubricate the motor.[Means of solution] A coolant circulation system 100 comprises: a motor 4 with a rotor 41, a stator 42, a rotating shaft 43 and plain bearings 44; a gas-liquid separator 12, which separates a coolant into CO2 and oil; a CO2 passage 22b, through which the CO2 separated by the gas-liquid separator is supplied to a gap between the rotor and the stator to cool the rotor and the stator; mixing channels 24a, through which a mixture of the CO2 and the oil, obtained by mixing the CO2 and the oil separated by the gas-liquid separator, is supplied to gaps between the rotating shaft and the plain bearings to lubricate the plain bearings; and mixing channels 24b, through which the CO2 supplied to the rotor and the stator from the CO2 channel 22b and the mixture of CO2 and oil supplied to the sliding bearings 44 from the mixing channels 24a are returned to the gas-liquid separator.

The invention relates to the technical field of new energy automobile thermal management, and belongs to an R290 super integrated finished automobile thermal management system for a new energy automobile, the R290 thermal management system is adopted, the R290 thermal management system has excellent thermal characteristics and high low-temperature heating capacity, attenuation of low-temperature endurance mileage is reduced, energy consumption is reduced, and cost is reduced; according to the invention, the refrigerant loop is optimized, so that the filling amount of the refrigerant is minimized, and the system safety is ensured; furthermore, a heat regenerator is additionally arranged behind the system water-water heat exchanger, the supercooling section of the system can be guaranteed, the air suction superheat degree of the compressor is guaranteed, the system performance is optimized, and the service life of the compressor is prolonged. Waterways are integrated through the nine-way valve, the pipeline length used by the waterways is reduced, the use space of a cabin is increased, the pipeline cost of the waterways is saved, the low-temperature radiators are arranged in series, the situation that the heat dissipation capacity of one of the low-temperature radiators is affected due to conventional front-back arrangement is avoided, and the thermal management performance of the whole vehicle is optimized.

The invention refers to an active aero shutter for a motor vehicle, comprising a frame with openings through which air can flow, at least one closing plate in each opening, which closes the opening and stops the air flow when closed, and the frame is formed by several struts, each connected to at least one other strut, wherein each closing plate is pivoted with a hinge on a basic strut. As the active aero shutter according to the invention has counterrotating closing plates which are rotating in several angles it is possible to explore new design concepts and ensure driving performance.

A vehicle includes a chassis, a body coupled to the chassis, a first accessory coupled to the body, a second accessory coupled to the body, and a hydraulic system. The body includes a first body rail and a second body rail. The hydraulic system includes an electric power takeoff coupled to the body, a first manifold coupled to the body, first conduits fluidly coupled between the electric power takeoff and the first manifold, a second manifold coupled to the body, the second manifold positioned rearward of the first manifold, and second conduits fluidly coupled between the first conduits and the second manifold. The first manifold is configured to distribute the hydraulic fluid to the first accessory. The second manifold is configured to distribute the hydraulic fluid to the second accessory. The first conduits extend through at least one of the first body rail or the second body rail.

The invention discloses an intelligent cooperative control method and system for an extra-heavy hydrogen energy special vehicle, and belongs to the technical field of new energy vehicles. The method comprises the steps of collecting vehicle state data through a sensor network; based on the state data, adopting a model predictive control (MPC) algorithm to solve an optimal torque and distributing the optimal torque to the distributed driving system; according to the part temperature data, a thermal system is regulated and controlled through a thermal management algorithm TMS; and preprocessing the hydrogen system data, inputting the hydrogen system data into the LSTM model, and outputting leakage probability and positioning to execute multi-stage early warning. The system comprises a central controller, a sensor network and a combined driving system. Through multi-core domain control deep fusion of MPC, TMS and LSTM, global optimization collaboration of multiple groups of high-power hydrogen fuel cells, a high-density high-power energy storage battery pack, a liquid hydrogen storage and safety module, multiple groups of axial flux motor driving systems, a sensing network and central control extra-heavy vehicle parts is realized; and the endurance mileage of the vehicle and the intelligent control heavy load performance in a mine field and a special scene are effectively improved.

[Problem] Provision of a coolant circulation system that supplies a gaseous coolant to an engine where the degree of superheat is dampened to a low value. [Means of solution] Coolant circulation system S that circulates a coolant R to cool an engine 20 in a vehicle, wherein a control device 40 assumes a degree of superheat d of the coolant R exiting from secondary heat exchangers 15a, 15b based on detection signals from sensors 30, wherein the control device 40 controls a flow rate in first expansion valves 14a, 14b such that the degree of superheat d is maintained within a predetermined range between a lower limit dt1, which is greater than zero, and an upper limit dt2, and the control device 40 supplies the coolant R from the secondary heat exchangers 15a, 15b to the engine 20 via a channel 3.

The invention discloses a dust removal control method for a heat dissipation fan of a new energy truck, which comprises the following steps of: by taking an FCU and power-on linkage of the whole truck as a starting point, performing self-inspection on a power supply link, a communication link, a driving link and a sensing link, and forcibly executing one-time reverse dust removal after the power supply link, the communication link, the driving link and the sensing link are qualified; pWM is adjusted in real time based on segmented threshold values of the motor temperature and the controller temperature and linear mapping, the duty ratio is restrained by the change rate, and rotation stopping buffering is conducted before forward / reverse rotation switching; when the temperature exceeds the limit, full-load heat dissipation is preferentially carried out, and power is limited in cooperation with the MCU; and meanwhile, periodic dust removal including smooth speed reduction, rotation stopping, reverse rotation, rotation stopping and recovery according to mapping is executed in a non-emergency heat dissipation window according to RTC accumulated forward rotation working hours. According to the method, the problems that dust accumulated in the air duct is difficult to remove online, heat dissipation control is extensive and the overheating risk is high under the high-dust working condition are solved, and the technical effects that the air volume and the heat exchange efficiency are stable, energy consumption and NVH are reduced, and the maintenance frequency and the fault rate are reduced are achieved.

The invention relates to the technical field of vehicle thermal management, and discloses a vehicle radiator self-cleaning method, device and equipment and a computer storage medium, and the method comprises the steps of determining a current cleaning mode of a radiator of a vehicle based on current state information of the vehicle; according to the current cleaning mode, in combination with at least one kind of information of the current whole vehicle temperature value and the current vehicle speed value of the vehicle and the current fault state of the heat management actuator, whether the heat dissipation abnormal fault occurs to the heat dissipater or not is judged; and when it is judged that the heat dissipation abnormal fault happens to the radiator, a heat management executor is controlled to execute self-cleaning operation corresponding to the current cleaning mode on the radiator. By means of the technical scheme, the problem of heat dissipation failure caused by foreign matter shielding of the radiator can be solved, the situation that power of the whole automobile is degraded or lost due to the fact that the radiator is abnormal is avoided, and therefore the heat dissipation effect and performance of the automobile under different running working conditions and seasons are guaranteed, and the safety and reliability of the new energy automobile are improved.

The utility model belongs to the technical field of thermal management, and discloses a runner plate structure, a cooling system and an automobile, the runner plate structure comprises a runner plate assembly, the runner plate assembly is an injection molding element, the runner plate assembly comprises a runner plate body and a water valve body, the runner plate body is provided with a first connecting port, and the water valve body is provided with a second connecting port. The water valve body is provided with a second connecting port, and the second connecting port is communicated with the first connecting port. The water valve body and the runner plate body are integrally formed in an injection molding mode, the connection sealing performance of the water valve body and the runner plate body is improved, leakage of cooling liquid in the circulation process between the water valve body and the runner plate body is avoided, the connection between the water valve body and the runner plate body does not need a radial sealing ring, an end face sealing ring and a bolt any more, and therefore the sealing performance of the water valve body and the runner plate body is improved. Therefore, the problem of leakage of the cooling liquid caused by mismatching of the sizes of the end face sealing ring, the radial sealing ring and the bolt is avoided.

An electrified vehicle includes a chassis, a plurality of tractive elements coupled to the chassis, a plurality of electric axles coupled to at least one of the plurality of tractive elements, a battery interface, a swappable battery configured to be selectively connected to or removed from the battery interface, and a power distribution unit configured to receive electrical power from the swappable battery and supply the electrical power to the plurality of electric axles.

The invention discloses a three-electric mechanism type distributed driving electric vehicle heat dissipation system and method, and relates to the technical field of electric vehicle heat management, the system comprises a heat dissipation assembly, and the heat dissipation assembly comprises a recovery port, a first liquid outlet and a second liquid outlet; the first cooling loop is used for cooling the front hub motor, the second cooling loop is used for cooling the rear hub motor, an inlet of the first cooling loop is communicated with the first liquid outlet, and an inlet of the second cooling loop is communicated with the second liquid outlet; outlets of the first cooling loop and the second cooling loop are communicated with an inlet of the first flow dividing piece, and the outlet of the first flow dividing piece is provided with a first branch and a second branch; the vehicle control unit is used for controlling branch switching of the first flow dividing part according to the temperature of the recycling opening and adjusting the flow of cooling liquid flowing through the first cooling loop or the second cooling loop according to the temperature of the front centralized motor or the rear hub motor. The problem that a three-electric-mechanism type vehicle is large in thermal load is solved.

A device cooling system includes a vehicle-mounted device, a main controller, and a valve set. A liquid inlet pipe and a liquid outlet pipe are disposed on the vehicle-mounted device, the liquid inlet pipe is connected to the valve set, the valve set is connected to an electric drive liquid-cooling loop to form a first path, the valve set is connected to a battery liquid-cooling loop to form a second path, and the valve set is configured to switch a switch status to control to connect the first path or the second path. A temperature and humidity detection apparatus is disposed in the vehicle-mounted device. The main controller is configured to: obtain a dew point temperature based on a temperature and humidity that are detected by the temperature and humidity detection apparatus, and control, based on the dew point temperature, the valve set to switch the switch status.

The invention provides a vehicle control method and related equipment, which can be applied to the field of vehicle processing. The method comprises the following steps: acquiring a currently acquired environment temperature; in response to the situation that the environment temperature exceeds a first temperature interval corresponding to a current first thermal management mode of the vehicle, a temperature hysteresis threshold value is obtained, and a critical temperature value of the first temperature interval is adjusted according to the temperature hysteresis threshold value to obtain a target threshold value; in response to the critical temperature value being the upper limit value of the first temperature interval and the environment temperature being greater than the target threshold value, or the critical temperature value being the lower limit value of the first temperature interval and the environment temperature being less than the target threshold value, determining a second temperature interval in which the environment temperature is located; and a second heat management mode is determined according to the second temperature interval, and a target component corresponding to the second heat management mode is controlled to operate. According to the invention, the frequency of switching the thermal management mode of the vehicle is reduced.

The invention relates to a doorsill beam assembly integrated with a heat exchange runner and a vehicle, and belongs to the technical field of vehicle cooling systems.The doorsill beam assembly comprises a doorsill beam body, and an exhaust channel and a cooling liquid channel are arranged in the doorsill beam body; the cooling liquid channel comprises a first cooling liquid channel adjacent to the exhaust channel and a second cooling liquid channel far away from the exhaust channel; the flow path switching device is arranged at the end part of the doorsill beam body, and the flow path switching device is configured to connect the first cooling liquid channel or the second cooling liquid channel into the cooling liquid loop in a switchable manner or isolate the first cooling liquid channel or the second cooling liquid channel from the cooling liquid loop; and the heat exchange efficiency between gas and liquid in the doorsill beam body is adjusted by selecting the position of the channel through which the cooling liquid flows. According to the heat requirement of the load, liquid is selected to flow through the cooling liquid channel adjacent to the exhaust channel or the cooling liquid channel away from the exhaust channel, the heat exchange efficiency can be adjusted, and the heat using requirements of different working conditions are met.