345 results about "Retarder" patented technology

The multiple axle driving system for mixed power automobile with fuel oil and electric energy as power source includes at least one mechanical driving axle assembly, at least one electric driving axle assembly, one power source assembly, one general controller, one monitoring and communication network system, and one engine and one multifunctional double-rotor motor to drive different axles separately. The double-rotor motor consists of one outer rotor and one inner rotor, the outer rotor is connected to the hub in one side through the reducing mechanism and the versatile transmission mechanism, and the inner rotor is connected to the hub in the other side through the reducing mechanism and the versatile transmission mechanism. The multiple axle driving system integrates the technology and functions of complete mixed power, multiple axle driving, etc. and makes the automobile possess the advantages of easy realization, low cost, raised running smoothness and stability, etc.

A controller for the master brake of car and the decelerator including electric eddy one and engine exhaust one is composed of microcomputer, the driver unit for the electric eddy decelerator, the driver for the electromagnetic valve of engine exhaust decelerator, power switching module, feedback detecting circuit, and sound-light alarm circuit. Its control method is also disclosed.

This invention relates to a turbo buffer drive controller and its control method, which comprises one turbo buffer and one connected drive controller and the auto power system. The DSP processor stored procedure executes the following steps: starting to setting quota to testing speed to staring speed lamp to testing the block overflow to controlling the short to open to testing the abnormal current to testing input of ABS to testing constant control to testing the braking input signal to opening relative block and to displaying the output status.

The invention relates to the field of engineering machinery, and discloses a vehicle cooling system, a control device and a control method of the vehicle cooling system, and engineering machinery. The vehicle cooling system comprises a heat radiator, a first fan, a second fan, an engine cooling pipeline and a hydrodynamic retarder cooling pipeline, wherein the first fan is arranged in a first cooling area of the heat radiator; the second fan is arranged in a second cooling area of the heat radiator; the engine cooling pipeline is connected with the hydrodynamic retarder cooling pipe to form a cooling loop; and the cooling loop is provided with a cooling liquid outlet and a cooling liquid inlet which are respectively communicated with the outlet end and the inlet end of the heat radiator. Compared with the prior art, the cooling effect of the vehicle cooling system can meet cooling requirements under different situations, so that the cooling ability of the system can be guaranteed, the cooling efficiency of the system is improved, and unnecessary energy waste is avoided; in addition, the vehicle cooling system is low in cost and occupies a small space.

The invention relates to the technical field of a high-speed railway roadbed maintenance material, in particular to a special slurry pressing material for high-speed railway roadbed rush repair reinforcement and a grouting method thereof. The special slurry pressing material is prepared from the following raw materials in percentage in mass: 40 to 90 percent of high early strength sulphoaluminate cement, 1 to 5 percent of silica micro powder, 3 to 7 percent of anhydrite, 0.01 to 0.1 percent of plastic expansion agents, 0 to 55 percent of sand, 0.2 to 0.35 percent of water reducing agents, 0.01 to 0.1 percent of hardening accelerators, 0.1 to 0.3 percent of retarders, 0.01 to 0.1 percent of stabilizing agents, 0.02 to 0.1 percent of antifoaming agents and 0.1 to 1 percent of emulsion powder. The slurry pressing material has the technical characteristics that the filling performance is good (a pipe is not plugged); the hour intensity is high; the fast construction requirements are met; the bonding with the base surface is firm; the volume stability and durability are high, and the like. The requirements of repeated impact on the roadbed during the train operation without damage can be met; the whole construction method is simple; the speed is high. By using the method, the reinforcement treatment on the existing railway roadbed can be completed in the limited time at the night skylight point of the high-speed railway operation period; the normal driving safety in a next day is not influenced; the requirement of the high-speed railway repair on the time can be met.

The invention relates to a vehicle thermal management method and a vehicle thermal management system. In the method, an operator selects one cooling mode from an economical cooling mode and a reinforced cooling manner, a thermostat starting temperature corresponding to the selected cooling mode, a thermostat fully-starting temperature corresponding to the selected cooling mode and multiple first set gear shifting temperatures corresponding to the selected cooling mode serve as a first set temperature, a second set temperature and multiple first calibration temperature values. When the water outlet temperature of an engine is increased to the first set temperature, part of the thermostat is started; when the water outlet temperature of the engine is larger than the first set temperature and is increased, the opening degree of the thermostat is increased; when the water outlet temperature of the engine is increased to the second set temperature, the thermostat is fully started; and every time the water outlet temperature of the engine is increased or reduced to one first calibration temperature value, gear shifting is conducted on a fan. The system comprises a selector, a sensor, the fan and the thermostat. By means of the vehicle thermal management method and the vehicle thermal management system, the vehicle cooling purpose can be achieved when a retarder is started on the premise that the cost is increased as less as possible.

The invention relates to a self-excitation retarding device and a control method thereof. The self-excitation retarding device comprises a stator assembly, a rotor assembly and a control assembly, the rotor assembly comprises an eddy current brake rotor and a power generator rotor, the stator assembly comprises a stator support, an eddy current brake stator iron core, a coil winding assembly and a power generator stator iron core, and the control assembly comprises a first solid state relay, a rectifier, a second solid state relay and a third solid state relay. The stators of a retarding and braking portion and a power generating portion are integrated highly, so that the self-excitation retarding device is compact in structure, and both size and mass are reduced to some extent; a power generator stranded wire and an eddy current brake stranded wire are directly connected, so that alternating current output by the power generator stranded wire can be directly fed into the eddy current brake stranded wire, and the self-excitation retarding device can output large braking moment when an automobile travels at a low speed.

The invention relates to the technical field of engineering vehicles, in particular to a vehicle power take-off system and a power take-off method. The purpose is to realize the power take-off function on the basis of abandoning the power take-off and only matching the retarder. Among them, the vehicle power take-off system includes the power unit, clutch, mechanical automatic transmission, transfer case, power take-off clutch, power take-off switch, vehicle controller and anti-lock braking system; the mechanical automatic transmission includes the mechanical transmission body and the transmission Control unit; the transfer case includes the output shaft of the front axle and the output shaft of the power take-off, and the transfer case controls and sends the disconnection signal or the engagement signal of the output shaft of the front axle; The power switch sends a power take-off request or power take-off termination signal to the vehicle controller; the vehicle controller receives the power take-off output shaft engagement or disconnection signal, the front axle output shaft engagement or disconnection signal, and the power take-off request or power take-off termination signal signal, and transmit the power take-off request or power take-off termination signal to the transmission control unit.

The invention relates to a method for controlling the power transmission of a hydrodynamic retarder, comprising a circulating rotor having vanes and a stator having vanes or a counter-rotating rotor having vanes circulating in the opposite rotational direction to the rotor, which together form a working chamber that can be filled with operating medium by means of an inlet and that can be emptied by means of an outlet, wherein the working chamber is filled in a brake operation with operating medium and a brake torque is generated with the hydrodynamic retarder and, in a non-braking operation, the working chamber is emptied to a specific residual amount of operating medium and substantially no brake torque is generated with the hydrodynamic retarder.; The invention is characterised by the following step: In the non-braking operation, by means of an idling pump, operating medium is conveyed from an operating medium reserve, which is provided outside the working chamber in an operating medium reserve tank, into the working chamber of the hydrodynamic retarder for the adjustment of the residual amount.

The invention discloses a pump type magnetorheological fluid retarder. The retarder is characterized in that a retarder shaft is in anti-torque driving connection with a pump, a steel plate is installed in the retarder body and divides the retarder body into a left high-low pressure area channel and a right working cavity, a magnetizable material silicon steel plate and a working magnetic coil aremounted on the side of the working cavity, the pump is arranged in the right working cavity separated by the retarder body and the steel plate, the working cavity and the high-low pressure area channel are filled with working medium magnetorheological fluid, and a magnetorheological fluid valve is arranged in a left channel of a steel plate hole of the steel plate high-pressure area. In the working temperature range, viscosity of the magnetorheological fluid is slightly influenced by the temperature under the action of a magnetic field, the viscosity is proportional to the magnetic field intensity, controllability is excellent, the maximum braking force controllable, the maximum braking force can be far greater than that of a common hydraulic retarder, the retarder is stable in braking force, can generate the same braking force at a low rotating speed, can generate the required retarding braking force at any vehicle speed, is not only used for long slopes under mountain roads, but further can be widely used for meeting the requirement of frequent speed reduction of urban vehicles, main braking can be replaced to implement braking, and the use frequency of a main brake can be greatly reduced.

The invention relates to a hybrid electric vehicle based on a hydraulic retarder and a control method thereof. A driving system comprises a driving motor, a power battery, an engine, the hydraulic retarder, a clutch, a power coupling, a transmission, a vehicle axle and the like, wherein an output shaft of the engine is connected with a movable wheel input shaft of the hydraulic retarder, and a movable wheel output shaft of the hydraulic retarder is connected with a first input shaft of the power coupling through the clutch. A corresponding heat management system consists of a heat radiator, a cooling fan, a main path water pump, a second switch valve, a first switch valve, a bypass water pump, a cooling pipeline, and a hydraulic retarder control valve, wherein the driving motor, the power battery, a cooling water jacket of the engine and a working cavity of the hydraulic retarder are respectively connected with a heat radiator in parallel.

The invention discloses an intelligent control system and method of a hydraulic retarder. The system comprises a hydraulic retarder driving wheel speed sensor,and the speed sensor is connected to a fuzzy PID controller of the hydraulic retarder and used for detecting the speed of a hydraulic retarder drive wheel and transmitting a detected speed signal of the hydraulic retarder drive wheel to the fuzzy PID controller of the hydraulic retarder; the fuzzy PID controller of hydraulic retarder is used for receiving the speed signal transmitted by the hydraulic retarder driving wheel speed sensor, conducting on-line self-tuning on the speed signal and then sending out a control command signal obtained after online self-turning. The slow-down effect of the system is continuous, and the driving safety is improved. Practice proves that the hydraulic retarder has a satisfying braking assisting effect, and becomes the first choice of high-grade and large-tonnage commercial vehicles.

The invention provides a heat dissipation system for a complete vehicle matching a hydraulic retarder, comprising an engine and a cooling circuit system connected to a cooling channel of the engine, the cooling circuit system is provided with a hydraulic retarder; the outlet pipe of the hydraulic retarder An auxiliary cooling pipeline is connected in parallel on the upper side, and a control module for controlling the conduction of the hydraulic retarder when the outlet water temperature of the hydraulic retarder exceeds a predetermined value is arranged on the auxiliary cooling pipeline. The outlet pipe of the hydraulic retarder is connected in parallel with the auxiliary cooling pipeline, and the control module monitors the water temperature, and when the monitored outlet water temperature exceeds a predetermined value, the auxiliary cooling pipeline is turned on, so that the auxiliary cooling pipeline intervenes in the cooling In the loop system, the cooling work is performed together, thereby improving the cooling capacity of the vehicle cooling system and meeting the cooling requirements of the vehicle cooling system. The invention also provides an automobile.

The invention relates to the technical field of retarder control, and discloses an intelligent controller of a hydrodynamic retarder, which comprises a vehicle speed signal, a power supply system, a whole vehicle CAN signal and an engine exhaust brake, and is characterized in that the vehicle speed signal is connected with the intelligent controller of the hydrodynamic retarder; the power supply system is electrically connected with an intelligent controller of the hydrodynamic retarder, and the engine exhaust brake is connected with the intelligent controller of the hydrodynamic retarder; theinvention further discloses a control method of the intelligent controller of the hydrodynamic retarder. The invention aims to enable a user to operate easily, control the hydrodynamic retarder to work stably, better, safely and reliably, increase a CAN bus communication interface, realize communication information interaction with other equipment of a vehicle, reduce control lines and improve the reliability.

The invention discloses a braking and retarding integration supporting bridge for a trailer. The braking and retarding integration supporting bridge for the trailer comprises a supporting bridge part,a hydrodynamic retarder part, an accelerating mechanism part, a heat dissipation circulating system and a control module. The supporting bridge part comprises supporting bridge housings, hubs and endcovers, the hydrodynamic retarder part comprises left stator impellers, right stator impellers and rotor impellers, and the accelerating mechanism part comprises sun wheels, planet wheels and gear rings. The hydrodynamic retarder is designed at the position of an original braking mechanism, the rotor impellers of retarders and the sun wheels of accelerating mechanisms, the right stator impellersand the gear rings and the hubs and planet carriers are integrally designed, and power is provided for the retarders. A friction braking mechanism and a braking drum are removed from the whole bridge,the weight of the whole bridge is greatly reduced and overally, two modes of braking and retarding of the retarders are controlled by air pressure, adjustment and classification of the moment of force are realized, and the sensitivity of vehicle operation and the driving safety are enhanced.

The invention belongs to the technical field of underground auxiliary transport equipment in coal mines, and particularly relates to a hydraulic-mechanical combined baking system for an articulated explosion-proof vehicle in a coal mine. The hydraulic-mechanical combined baking system comprises a hydraulic torque converter connected with the rear part of an engine, the hydraulic torque converter is connected with a gear box through an upper transmission shaft, front output of the gear box is connected with a front axle through a front axle transmission shaft, the two ends of the front axle areconnected with two wet service brakes correspondingly, rear output of the gear box is connected with a connecting flange of a hydraulic retarder braking device through an articulated transmission shaft, the connecting flange of the hydraulic retarder braking device is connected with a rear axle through a rear axle transmission shaft, the two ends of the rear axle are connected with two service brakes correspondingly, a wet parking controller is arranged on a second shaft of the gear box, the four wet service brakes on the front axle and the rear axle are connected with a mechanical braking service braking control valve and a switching valve through hydraulic controlling pipelines correspondingly, the switching valve is connected with a hydraulic braking control system, and the hydraulic retarder braking device is connected with a gas source through a pneumatic control valve and a pneumatic control pipeline.

A platform to replace under-the-hood engine assembly of a conventional internal combustion engine vehicle. The platform includes a backbone frame and a tower frame secured to the backbone frame towards a vehicle front. The backbone frame and the tower frame are secured to chassis frame of the vehicle through a three point isolator mounting system. A plurality of electric drive components, such as battery radiators, electric-axle and high-voltage accessories cooling system radiator, air conditioning condenser, cooling fans, brake retarder, DC-DC voltage converter(s), HVAC compressor, inverter(s), low voltage batteries package, air compressor, pumps, etc. are secured to the backbone frame and the tower frame to support the electric motor of the electric vehicle.