378results about How to "Improve cold start performance" patented technology

An electrically-variable transmission for use with an engine includes an input member configured for operative interconnection with the engine, an output member, and a stationary member. First and second motor / generators, a first and a second planetary gear set each having respective first, second, and third members are included. A first, a second, and a third selectively engagable torque-transmitting mechanism are included. The input member is connectable for common rotation with the first member of the first planetary gear set either continuously or selectively by engagement of the third torque-transmitting mechanism. The output member is connected for common rotation with the first member of the second planetary gear set. The motor / generators are controllable and the torque-transmitting mechanisms are selectively engagable to establish at least one electric-only mode, a series mode, an output-split mode, and at least one neutral mode.

The lubricating base oil of the invention satisfies at least one of conditions (a) or (b) below. The lubricating oil composition for an internal combustion engine according to the invention comprises the lubricating base oil of the invention, an ashless antioxidant containing essentially no sulfur as a constituent element, and at least one compound selected from among ashless antioxidants containing sulfur as a constituent element and organic molybdenum compounds. Also, a lubricating oil composition for a power train device according to the invention comprises the lubricating base oil of the invention, a poly(meth)acrylate-based viscosity index improver and a phosphorus-containing compound.(a) The saturated component content is 90% by mass or greater, and the proportion of cyclic saturated components among the saturated components is 10-40% by mass.(b) The condition represented by the following formula (1) is satisfied. 1.440≦n20−0.002×kv100≦1.453 (1)[wherein n20 represents the 20° C. refractive index of the lubricating base oil, and kv100 represents the kinematic viscosity at 100° C. (mm2 / s) of the lubricating base oil.]

The invention relates to vehicle used high-temperature lead acid battery negative pole lead plaster and a preparation method thereof, belongs to the storage battery technical field and is used for improving the high-temperature service life and the low-temperature starting capacity of the storage battery. The technical proposal is as follows: the lead plaster solid raw material comprises the following materials by the weight unit: 100 units of lead powder, 0.01 to 0.5 units of sodium lignosulfonate, 0.01 to 0.8 units of high-temperature sodium lignosulfonate, 0.01 to 1.0 unit of graphite powder, 0.03 to 0.08 units of fibre, 0.3 to 1.2 units of barium sulfate, 0.2 to 1.0 units of humic acid and 0.1 to 0.4 units of black carbon. The materials, such as the high-temperature sodium lignosulfonate and the graphite powder are added to the compounding recipe of the negative pole lead plaster, thereby the performance of the negative pole active materials is effectively improved at the high temperature by matching with the reasonable compounding recipe ratios of the added materials, the contraction is reduced, thereby the high-temperature service life and the low-temperature starting capacity of the storage battery are enhanced, particularly the high-temperature service life can be above 90 percent higher than the storage battery prepared based on a common compounding recipe.

The invention provides a control method of a combustion engine using dimethyl ether and high-octane rating fuel, relating to a flexible scene mixing mode of dimethyl ether (DME) and high-octane rating fuel combining with a compound mixing combustion mode of ignition and compression ignition. According to the operation working condition of the combustion engine, the combustion mode is selected, and the scene mixing in different ratios is regulated in real time by using the pure DME and high-octane rating fuel so as to meet the requirement of the combustion engine on the fuel under the whole working condition. Under a starting and idling working condition, ignition is carried out by the pure DME; when in 0-30% small load, high-octane rating fuel-DME with high DME mixing ratio is used for carrying out homogeneity premixing and compression ignition; when in 30-70% intermediate load, the high-octane rating fuel-DME mixing fuel with low DME mixing ratio is used for carrying out spark ignition; and when in 70-100% high load, high-octane rating fuel is used for ignition. By using the technology, a combustion engine for a vehicle can reach an emission standard above ohm 4, and an efficient technical way is provided for using and consuming oil and fuel as well as improving engine heat efficiency and fuel oil economy.

The lubricating base oil of the invention is characterized by satisfying at least one of the following conditions (a) or (b).(a) A saturated compound content of 95% by mass or greater, and a proportion of 0.1-10% by mass of cyclic saturated compounds among the saturated compounds.(b) The condition represented by the following formula (1).1.435≦n20−0.002×kv100 ≦1.450  (1)wherein n20 represents the refractive index of the lubricating base oil at 20° C., and kv100 represents the kinematic viscosity (mm2 / s) of the lubricating base oil at 100° C.

The invention provides a lead-acid cell which belongs to the field of lead-acid cells, and can be used for solving the problems of poor large current performance and short cycle life of the existing lead-acid cell. Through adding conductive additive and carbon materials to a negative pole of the lead-acid cell, the lead-acid cell solves the problems of the poor large current performance, the short cycle life and the like of the existing lead-acid cell.

There is provided an electrode catalyst layer that has excellent durability compared to conventional electrode catalyst layers employing carbon supports, and that can minimize as much as possible the amount of catalyst material used while exhibiting desired output, by allowing adjustment of the amount as necessary. The electrode catalyst dispersion of the disclosure comprises catalyst particles that contain a non-conductive support and a conductive catalyst material covering the surface of non-conductive support, and a dispersing medium selected from among water, organic solvents and combinations thereof. The ink composition of the disclosure comprises catalyst particles containing a non-conductive support and a conductive catalyst material covering the surface of non-conductive support, a dispersing medium selected from among water, organic solvents and combinations thereof, and an ionic conductive polymer, wherein the volume ratio of the catalyst particles and the ionic conductive polymer is 55:45-90:10. There is further provided an electrode catalyst layer.

The invention discloses a negative plate of a battery, a preparation method thereof and the battery comprising the negative plate. The negative plate is composed of a plate grid and a negative pole material coated on the plate grid, and the negative pole material comprises a battery active material, a capacitor material as well as a conductive steric hindrance agent; the battery active material comprises 100 parts by weight of lead powder, 0.6-2.0 parts by weight of barium sulfate and 0.1-0.5 part by weight of short fiber, and the capacitor material comprises 0.1-10 parts by weight of active carbon; and the additive amount of the electric conduction steric hindrance agent is 0.1-5.0 in parts by weight, and the conductive steric hindrance agent comprises Magneli mutual sulfoxide titanium oxide and / or plumbous acid barium. The raw material of the negative plate of the battery provided by the invention can be used for postponing a negative board sulphate phenomenon through combining the three parts, the cold-starting property is markedly improved, and the heavy-current charge-discharge property is optimized.

The method of the invention controls engine speed during engine starting for a hybrid electric vehicle that includes a battery, an engine and a generator, acting as a motor, whereby generator torque assists the engine to develop a stable running speed throughout an engine start event, particularly a cold engine start event, without violating battery power limits.

The invention discloses an electronic cooling water pump of a variable-flow engine. The pump comprises a pump body, a shaft connected bearing, a flange and an impeller, wherein the shaft connected bearing is arranged on the pump body; the flange and the impeller are arranged at the two ends of the shaft connected bearing respectively; and the flange is in transmission connection with a belt pulley through a clutch mechanism. The pump is characterized in that: a spring strip which facilitates separating a driven plate from the belt pulley is arranged between the flange and the belt pulley; the clutch mechanism comprises a clutch bearing, a magnetic body A which pulls in the driven plate and the belt pulley and a coil which can generate a magnetic field repellent to the magnetic body A after being electrified; the magnetic body and the coil are arranged on a bracket; the electrification signal input end of the coil is connected with the output end of an electronic control unit which can acquire the temperature of engine cooling liquid; and a magnetic body B is pressed into the belt pulley. Engagement and disengagement between the driven plate and the belt pulley is realized by the coil in an electronic control way, so that a cooling system is driven appropriately, quantitatively, accurately and reasonably. The pump has the advantages of low energy consumption, quick response, low noise, high accuracy and long service life.

The method of the invention controls engine speed during engine starting for a hybrid electric vehicle that includes a battery, an engine and a generator, acting as a motor, whereby generator torque assists the engine to develop a stable running speed throughout an engine start event, particularly a cold engine start event, without violating battery power limits.

Multi-stage in-line cartridge ejectors for a fuel cell system provided herein comprise: at least one ejector main body for supplying hydrogen, each ejector main body including a plurality of nozzles arranged in line with a predetermined gap, in which the diameters of the respective nozzles become larger from an inlet side of the ejector main body toward an outlet side thereof, and a plurality of sub-inlets formed on an outer surface of the ejector main body to be connected to the gap or gaps between the nozzles; and a housing accommodating the eject main body and including a main inlet for intake of recirculated hydrogen. The multi-stage in-line cartridge ejectors can improve the system performance by increasing the amount of recirculated hydrogen. Moreover, at least one check valve is provided at an intake position of the cartridge ejectors to effectively prevent reverse flow of recirculation hydrogen gas and at least one heater is provided around the cartridge ejectors to improve cold startability.

The invention discloses gasoline of high proportion methanol directly used for a vehicle. The methanol mass fraction is not less than 70%. The methanol gasoline comprises: 70-90% of methanol, 7-29% of component oil and 1 to 3% of additive, wherein, the component oil comprises C5-C7 saturated alkane, solvent oil, 90 # gasoline and toluene, the additive comprises C3-C8 monobasic alcohol, petroleum ether with distillation range of 30-60 degrees C., EGME, N, N'-2 salicylidene -1,2- propylene diamine and other raw materials which can be added or not. The provided gasoline of high proportion methanol directly used for the vehicle in the invention overcomes the existing technical problem of the gasoline of high proportion methanol under the circumstances that the existing engine is not required to be modified, and leads the gasoline of high proportion methanol to be well applied to the vehicle.

The invention relates the alcohol ether fuel and preparing method. The fuel comprises 20-80wt% methyl alcohol or ethanol, 14-75% petrol, 1-5% auxiliary solvent, 1.5-3wt% combustion adjuvant, 0.01-2wt% corrosion inhibitor, and 0.01-0.5wt% metal deactivator. The invention has the advantages of reducing energy consumption, good stable stability, good burning effect, good cold-starting, reducing the output volume of CO and HC, reducing CO content, simple technology and low cost.

The invention discloses a direct injection engine with diesel-gasoline dual-fuel sequence combustion, belonging to the technical field of engines. On the one hand, the engine can simultaneously make use of diesel and gasoline, and the two fuels can be sequentially and directly injected in one cycle; on the other hand, according to the engine, a high-compression-rate and three-way catalysis aftertreatment device, so that the engine can realize the purposes of high thermal efficiency and low emission simultaneously.

The invention described herein involves a novel approach to the production of oxidation / reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.

A battery warm up system according to the present disclosure includes a battery state measuring unit to measure a state of charge (SOC) of each module of a battery pack of a vehicle, a control unit to optionally output a forced discharging start signal and to output a balancing start signal, a forced discharging circuit unit to force at least one battery module among a plurality of battery modules of the battery pack to be discharged in response to the forced discharging start signal, and a balancing unit to balance the SOC of each of the battery modules in response to the balancing start signal.

The invention relates to an internal combustion steam engine that is based on the internal combustion thermodynamic generator. The variable radiators are taken out from the traditional engine, while the warm keep cover, and heat absorbing water spray system formed by water tank, low pressure water pump, water cooling heat exchanger, high pressure pump, high water sprayer, are installed on the outside of traditional engine and connected through the water delivery pipe according to the above order, thereof, the high pressure water sprayer if installed on the high temperature part of the firebox; besides, by reforming the fuel atomization and spraying device onto the air-changing channel to make engine save energy and the more environment-protective.

The lead plaster for use in battery anode comprises 100 proportion lead powder, 0.05-0.06 proportion fabric,0.2-0.4 proportion acetylene black,0.5-0.8 superfine barium sulphate, 0.5-0.8 proportion humic acids, and 0.1-0.2 proportion ligninsulfonic acid . The oxidation-proof anode ingredient is selected to improve charging property and starting ability at low temperature and attain more cycling times.

A hot coolant type heat accumulating apparatus for a hybrid vehicle is provided that includes an internal combustion engine having first and second coolant circulation systems through which a coolant is circulated using power from the engine, a heat accumulation tank that recovers, via part of the second coolant circulation system, some of the coolant that has been heated by the internal combustion engine, and stores that heated coolant, and a controller. This controller automatically shuts off the internal combustion engine when a predetermined shutoff condition has been fulfilled, circulates the coolant through the second coolant circulation system while the internal combustion engine is shutoff, and inhibits recovery of the hot coolant while the internal combustion engine is shutoff by automatic shutoff.

A carburetor choke valve electronic control system includes: a transmission device coupled to a choke valve for opening and closing an intake path of a carburetor; an electric motor for driving the choke valve to be opened and closed via the transmission device; and an electronic control unit for controlling operation of the electric motor. The system further includes: a casing mounted on one side of the carburetor, and housing the transmission device and the electric motor; an operating lever disposed outside the casing; and a choke valve forced closure mechanism that allows the transmission device to be operated in a direction that closes the choke valve by operation of the operating lever.

The invention relates to methanol-diesel and a preparation method thereof, and the methanol-diesel contains the following components in parts by weight: 30-80 parts of methanol, 20-60 parts of diesel and 10-50 parts of additives. The preparation method comprises the following steps: adding the additives into a reactor successively, and stirring until a uniform and steady transparent solution is formed, thus obtaining an additive mixed solution; and then mixing the methanol with 0# diesel, then adding the prepared additive mixed solution of a certain proportion under intense stirring, and thenstirring until the solution is clear and transparent, thus obtaining the prepared methanol-diesel. Compared with the prior art, the stability of the methanol-diesel is improved, the flash point and the combustion efficiency of the methanol-diesel are enhanced, and the mixed methanol-diesel is transparent and steady, has no milky or stratified situation and can be stored for a long time; and when in use, the methanol-diesel can be directly used, the structure of the existing engine does not need to be changed, and the performance indexes can all meet the requirements of commercial diesel.

The invention discloses a gasoline and natural gas double-fuel double-jetting type engine and belongs to the technical field of internal combustion engines. The gasoline and natural gas double-fuel double-jetting type engine comprises a gasoline tank, an electrically controlled gasoline injector, a natural gas storage tank, a natural gas high-pressure stop valve, a natural gas reducing valve, a natural gas low-pressure stop valve, a natural gas jetting rail, an electronic control unit, and an electrically controlled natural gas injector. The electrically controlled natural gas injector is arranged on a gas inlet pipe behind an electronic gas throttling door; the natural gas jetting rail is connected with the electrically controlled natural gas injector through a natural gas pipeline. On one hand, the engine can use gasoline and natural gas at the same time, and can jet two fuels sequentially within a cycle; on the other hand, the engine can adopt a high compression ratio and ternary catalysis post-processing device to realize the purposes of high heat efficiency and nearly no particle discharge at the same time. The gasoline and natural gas double-fuel double-jetting type engine is rational in design, simple in structure and suitable for optimized design of double-fuel engines.

A start control apparatus for an internal combustion engine, which takes an amount of a fuel vaporized from a heated fuel into consideration to prevent deterioration of startability due to an overrich or overlean condition caused by an excessive or insufficient amount of the vaporized fuel and to realize improvement of cold startability. The start control apparatus includes: a heater (14) for heating a fuel to be supplied to the internal combustion engine; fuel heating control unit (22) for energizing the heater when a cooling water temperature is less than an internal combustion engine start possible water temperature value to heat the fuel; and start time fuel setting unit (26) for setting a start time fuel injection amount of the internal combustion engine according to a fuel temperature after the fuel is heated by the fuel heating control unit (22), an alcohol concentration, and the cooling water temperature.

The invention provides a solar air conditioner for improving air conditioning heating performance. The solar air conditioner comprises a compressor, an indoor unit heat exchanger, an outdoor unit heat exchanger, a solar module and a four-way valve, wherein an air suction port and an exhaust port are formed in the compressor; and the solar module is connected between the outdoor unit heat exchanger and the four-way valve. According to the solar air conditioner for improving the air conditioning heating performance, a heat pump technology is combined with a solar energy technology, so that air conditioning low-temperature starting performance can be enhanced, the outlet air temperature comfort can be improved, a modular design is used, the universality of the air conditioner is enhanced, the application temperature range of heat pump air conditioning is greatly expanded, and the solar air conditioner is environment-friendly and economical.

An oil injector, inside which a positive temperature coefficient ceramics heating material is arranged, mainly comprises an injector needle valve, an injector needle valve body, an injector body, an injector tappet, an injector pressure-adjusting spring, a round heat transfer pipe inside the injector body, positive temperature coefficient heating ceramics inside the injector body, an insulated jacket inside the injector body, a round heat transfer pipe inside an oil inlet bolt, positive temperature coefficient heating ceramics inside the oil inlet bolt, an insulated jacket inside the oil inlet body, and so on. Positive temperature coefficient heating ceramics is arranged inside the oil inlet bolt and the oil injector, heats the diesel oil with a self-controlling temperature via the heat transfer pipes, and is insulated through the insulated jacket. The invention provides an oil injector used for diesel heating at the self-controlling temperature during the coal start and warm-up courses. The heating temperature will not exceed the boiling point of diesel oil. Less heating is needed, and the heating is quicker, so the diesel emission can be effectively improved and the cold-start performance can be promoted.

A battery warm up system according to the present disclosure includes an open signal receiving unit to receive a door open signal for opening a door of a vehicle, a temperature measuring unit to measure a temperature of a battery pack connected to a starter of the vehicle, a control unit to output a forced discharging start signal by referring to information associated with the temperature measured by the temperature measuring unit when the door open signal is received by the open signal receiving unit, and a forced discharging circuit unit to force a plurality of battery modules constituting the battery pack to be discharged in response to the forced discharging start signal.

The invention discloses an automobile secondary energy storing device based on a super-capacitor and a control method. The automobile secondary energy storing device based on the super-capacitor comprises a super-capacitor module, a super-capacitor management unit, a step-down DCDC and a step-up DCDC. One end of the super-capacitor module is connected with the super-capacitor management unit through a hard wire. The other end of the super-capacitor module is connected with a generator, a load, a storage battery and a starter motor respectively through hard wires. One end of the step-down DCDC is connected with the super-capacitor management unit through a hard wire. The other end of the step-down DCDC is connected with the generator, the load, the storage battery and the starter motor respectively through hard wires. One end of the step-up DCDC is connected with the super-capacitor management unit through a hard wire. The other end of the step-up DCDC is connected with the generator, the load, the storage battery and the starter motor respectively through hard wires. The super-capacitor management unit is also in communication with an engine control unit through a CAN bus. The automobile secondary energy storing device based on the super-capacitor and the control method can be applied to a non-hybrid power passenger vehicle with an internal combustion engine for supplying power.

The invention discloses an engine cold-start preheating device. A heat storing heat exchanger (3) is in a parallel connection with an exhaust pipe (2) of an engine (1), the heat storing heat exchanger (3) is used for storing exhaust air waste heat of the engine (1), the heat storing heat exchanger (3) is in a columnar structure, a plurality of heat storing units are distributed in the heat storing heat exchanger (3), each heat storing unit is a concentric casing pipe (7) which comprises an inner pipe and an outer pipe, a phase change thermal storage material (8) is encapsulated in annular space between the inner pipe and the outer pipe, two ends of the inner pipe are welded on two flow guide plates (9) respectively, a hollow cavity for enabling cooling water of the engine (1) to flow through is formed by the two flow guide plates (9) and inner walls of the heat storing heat exchanger (3), and the inner walls of the heat storing heat exchanger (3) are located between the two flow guide plates (9). The engine cold-start preheating device has the advantages of being low in costs, small in size, efficient, energy-saving and convenient to popularize and use in a wide range.