14 results about "Automatic transmission fluid" patented technology

A lubricating oil composition is disclosed. The composition comprises a major amount of an oil of lubricating viscosity; one or more ashless dispersants; at least one phosphorus-containing antiwear additive, wherein the at least one phosphorus-containing antiwear additive is a phosphorus-containing acid, a phosphate ester, a phosphite ester, a thiophosphate ester, or an amine salt thereof; at least one friction modifier, wherein the at least one friction modifier is a diol, an ethoxylated amine, a fatty acid ester, or an alcohol; a nitrogen-containing friction modifier having the structure wherein R1 and R2 are independently a branched C10-C25 hydrocarbyl group.

The present application relates to the technical field of lubricating oil, and discloses an automatic gearbox oil based on coal-made base oil and a preparation method thereof, the automatic gearbox oil based on coal-made base oil comprises the following components: coal-made base oil 70-90 parts, a solubilizing agent 2-15 parts, a cleaning dispersant 0.5-5 parts, an anti-rust and anti-corrosion agent 0.5-3 parts, an antioxidant 0.2-2 parts and a defoaming agent 0.001-0.01 part. The automatic gearbox oil based on coal-made base oil provided by the present application has excellent lubricating performance, can meet the working condition requirements of the automatic gearbox oil, improves the working energy efficiency of the automatic gearbox, prolongs the oil change cycle, and has a relatively low raw material cost.

The invention relates to the technical field of clutch control, in particular to an automatic transmission clutch control method, system and equipment based on the whole vehicle shutdown duration and a medium, and the method comprises the steps that after an engine is started, the shutdown duration of the whole vehicle from previous flameout to current starting is obtained and latched; monitoring the fluid temperature of the automatic transmission and the oil charging state of the clutch, and counting the oil charging times of the clutch after the engine is started in real time; when the oil charging frequency is 0 and the clutch is in the first oil charging process, oil charging compensation time is determined based on the shutdown duration and the fluid temperature of the automatic transmission, and time compensation is conducted on oil charging control of the clutch; and when the oil charging frequency is 1 and the clutch is in the first KP pressure control process, determining a KP pressure compensation value based on the shutdown duration and the fluid temperature of the automatic transmission, and performing pressure compensation on the KP pressure control of the clutch. The pressure control precision and the gear shifting quality can be effectively improved.

The invention belongs to the field of lubricating oil, and relates to anti-wear automatic gearbox oil and a preparation method thereof. The invention provides a flexible composite particle with a core-shell structure, a shell is branched aminated flexible graphene oxide, an inner core is nano zinc oxide, and the invention also provides a multifunctional additive containing a silane functionalized zwitterionic substance. Branched aminated flexible graphene oxide, nano zinc oxide and silane functionalized zwitterionic substances in the anti-wear agent form a composite film on the metal surface, so that the gearbox oil has better bearing capacity and extreme pressure resistance; and in addition, the oil sludge particles and the composite film formed in the long-term use can fill microscopic scratches at the metal wear part and improve the surface contact state to achieve a self-repairing effect. And finally, the oil sludge amount is reduced by 40% or above, the cleanliness of the valve body is remarkably improved, the gear shifting jerking occurrence rate is reduced by 30%, and the method is suitable for frequent gear shifting scenes under urban congestion road conditions.

The present invention provides a vehicle warning device that detects in advance when the torque converter is in a lost drive state and notifies the driver accordingly. [Solution] This vehicle warning device detects that the vehicle is in a lost drive state and issues a notification that it cannot start moving at this time if the oil temperature of the ATF (automatic transmission fluid) at the end of the previous drive is above a predetermined value, the time from the end of the previous drive until the indicator light for the current drive is illuminated is above a predetermined time, and furthermore, the shift operation to the driving range is performed within a predetermined time from the time the indicator light for the current drive is illuminated.

A system for controlling coolant of a vehicle can include an integrated flow control valve configured to open and close branch lines for supplying coolant discharged from an engine of the vehicle to an automatic transmission fluid (ATF) warmer, a heater, and a radiator, respectively, an exhaust heat recovery system configured to exchange heat between exhaust gas discharged from the engine and the coolant discharged from the engine, and a controller configured to control the integrated flow control valve to open and close the branch lines to supply coolant to the ATF warmer, heater, and radiator, respectively, depending on the temperature of the outside air, the coolant temperature discharged from the engine, and the coolant temperature discharged from the exhaust heat recovery system, and control the exhaust heat recovery system to allow heat exchange between the exhaust gas and the coolant.

The utility model discloses a needle type heating plate of a new energy vehicle heater, which relates to the technical field of thick film heaters, and comprises a substrate, a silk-screen printing layer is fixedly connected to the bottom of the substrate, the silk-screen printing layer extends to the top of the substrate and is fixedly connected with a plurality of groups of fins, the plurality of groups of fins are in a water drop shape, and the fins are arranged on the substrate. The upper layer of the substrate is composed of a printed resistance layer and a ceramic insulating layer. According to the needle-shaped heating plate of the new energy vehicle heater, liquid can smoothly flow along the surface of the needle-shaped heating plate due to the shape of the water-drop-shaped fins, and the flowing resistance of the liquid is reduced. In a liquid heater, the water-drop-shaped fins can provide good fluid adaptability for various liquids with different viscosities, such as water, oil, anti-freezing liquid and the like. For example, in an oil heater of an automatic gearbox of an automobile, oil can smoothly flow through the water-drop-shaped fins, energy loss caused by flowing resistance is reduced, and heating efficiency is improved.

The utility model discloses a kind of dismounting tool for automatic gearbox oil pump, it is related to automobile maintenance tool technical field, at least including drawing sleeve, drawing screw and rotating handle;The drawing sleeve includes a top plate, a fixed half cylinder and a movable half cylinder, the top of the fixed half cylinder is fixed in the bottom of top plate, the top of the movable half cylinder is hinged in the bottom of top plate, the inner wall bottom of the movable half cylinder and fixed half cylinder is equipped with the arc convex edge formed to inwardly extend;The top center of the top plate is equipped with a thread hole matched with drawing screw, the top of drawing screw is equipped with a handle positioning hole, and the rotating handle is arranged in the handle positioning hole.In the utility model, a kind of dismounting tool for automatic gearbox oil pump is proposed, and the structure is simple, and the cost is low.

The invention discloses an automatic gearbox oil complexing agent and a preparation method thereof, and the automatic gearbox oil complexing agent is characterized by comprising the following components by mass: 0.6-1.5% of a clearing agent, 30-55% of a dispersant, 3-7% of an antioxidant, 3-9% of an extreme pressure anti-wear agent, 5-10% of a friction modifier, 1-2% of an antirust agent, 20-30% of a viscosity index improver, and the balance of neutral base oil, the dispersant is a combination of self-made phosphorus-boronized polyisobutylene succinimide (the molecular weight Mn of PIB is 550 to 750) and high molecular weight polyisobutylene succinimide (the molecular weight Mn of PIB is 1300 to 2300) or low molecular weight polyisobutylene succinimide (the molecular weight Mn of PIB is 550 to 900). The automatic transmission oil prepared by the automatic transmission oil complexing agent can maintain friction performance in a full temperature range for different types of AT automatic transmissions, and has excellent gear shifting feeling; meanwhile, the anti-vibration durability is excellent, and the service life and the oil change period of the automatic gearbox can be effectively prolonged.

The invention relates to a system and a method for controlling coolant of a vehicle. The system may include an integrated flow control valve configured to open and close a branch line for supplying coolant discharged from an engine of a vehicle to an automatic transmission oil (ATF) warmer, a heater, and a radiator, respectively; a waste heat recovery system configured to exchange heat between exhaust gas discharged from the engine and a coolant discharged from the engine; and a controller configured to control the integrated flow control valve to open or close the branch line according to a temperature of outside air, a temperature of a coolant discharged by the engine, and a temperature of a coolant discharged by the waste heat recovery system to supply the coolant to the ATF warmer, the heater, and the radiator, respectively, and controlling the waste heat recovery system to allow heat exchange between the exhaust gas and the coolant.

The present invention relates to low molecular weight polyalkyl acrylate polymers, a process for their preparation, and their use as high-viscosity base fluids. The present invention further relates to lubricating compositions comprising such low molecular weight polyalkyl acrylate polymers and to the use of such compositions as automatic transmission fluids, manual transmission fluids, continuously variable transmission fluids, gear oil formulations, industrial gear oil formulations, axle fluid formulations, dual-clutch transmission fluids, dedicated hybrid transmission fluids, or as hydraulic oils.

A lubricating oil composition is disclosed. The composition comprises: an oil with a main amount of lubricating viscosity; one or more ashless dispersants; at least one phosphorus-containing anti-wear additive, wherein at least one phosphorus-containing anti-wear additive is a phosphorus-containing acid, a phosphate ester, a phosphite ester, a thiophosphate ester, or an amine salt thereof; at least one friction modifier, wherein at least one friction modifier is a diol, an ethoxylated amine, a fatty acid ester, or an alcohol; and a nitrogen-containing friction modifier having the following structural formula. [Formula 1] TIFF2026512485000019.tif37165 (wherein R1 and R2 are independently branched C10-C25 hydrocarbyl groups)