Wuhu, China
Wuhu, China

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Patent
Chery Automobile Co. and Wuhu Power Technology Research Co. | Date: 2013-08-05

Disclosed is a dual-clutch transmission, using two input shafts (1, 2) and two driving shafts (3, 18), realizing seven forward gears (D1, D2, D3, D4, D5, D6, D7) and a reverse gear (R), eliminating a special reverse gear shaft for the reverse gear (R), and using eight synchronizers (S1, S2, S3, S4) to control the switching of all of the eight gears, namely the seven forward gears (D1, D2, D3, D4, D5, D6, D7) and the reverse gear (R), wherein part of the gears share a driving gear, so that the quantity of total parts and the axial length of the transmission are reduced; since the diameters of driven gears (14, 15, 16) of low-speed gears are relatively large, engagement sleeves of the corresponding synchronizers (S2, S3) can be arranged on the inner sides of the driven gears (14, 15, 16) according to structural arrangement requirements, so that an axial space is greatly saved; and the reverse gear shaft and a gear thereon are eliminated, the saved space facilitates the arrangement of a gear shaft fork mechanism, the supporting point of a gear shift fork can be close to the centers of the driving shafts (3, 18) and a gear shift execution mechanism in the absence of obstructions of the reverse gear shaft and the gear thereon, which is beneficial to the force distribution of the shift fork mechanism.


Patent
Chery Automobile Co. and Wuhu Power Technology Research Co. | Date: 2013-08-12

A pressure control system of a torque control device comprises an electronic control device TCU (100), a control pressure regulating valve (110), a fixed pressure oil passage, a pressure switching valve (120) and a jointing pressure regulating valve (130). When a control pressure is lower than a set value of a spring of the pressure switching valve, the pressure switching valve connects a jointing pressure with a feedback interface (135) of the jointing pressure regulating valve (130) and a jointing pressure regulating valve (130) outputs the jointing pressure in direct proportion with a control signal; when the control pressure reaches the set value of the spring of the pressure switching valve, the pressure switching valve (120) connects a fixed pressure with the feedback interface (135) of the jointing pressure regulating valve and the jointing pressure regulating valve (130) communicates a main pressure interface (131) with a jointing pressure interface (136) to increase the acting area of the control pressure of the jointing pressure regulating valve (130) through switching of the pressure switching valve (120) or reduce the feedback area, so as to increase the change slope of the jointing pressure and ensure enough torque capacity.


Patent
Chery Automobile Co. and Wuhu Power Technology Research Co. | Date: 2012-07-11

The present invention provides a speed ratio control method applicable to CVT of EVs so as to optimize the motor performances. Said speed ratio control method for CVT of EVs comprises the following steps: the controller acquires the real-time opening degree signals of accelerator pedal, the motor rotational speed and the speed ratio of CVT, and regulates the motor rotational speed or the speed ratio of CVT according to said signals, so that the motor can work within the range of high efficiency motor rotational speed, while satisfying power requirement of entire vehicle. Through reasonable control of speed ratio and regulation of motor rotational speed, CVT becomes more compatible with the motor and the motor efficiency is optimized on the basis of ensuring the power requirement of entire vehicle. The power system works under the optimum condition so that the energy utilization efficiency and drivability are improved.


Patent
Chery Automobile Co. | Date: 2011-08-17

A cooling system for testing lifetime of hybrid power vehicle controller is provided. The cooling system comprises a control unit(8), a plurality of flow control valves(1), a water pump(4), a diverter(2), many condensers(3), a water tank(5) and a plurality of cooling benches(6) with temperature sensors. The control unit(8) receives temperature signals from temperature sensors of the cooling benches(6), and sends control signals to the water pump(4), the flow control valves (1) and the diverter(2) in order to control the operation of the water pump(4), the flow control valves(1) and the diverter (2). The cooling water that is pumped from the water tank(5) by water pump(4) is split and carried to the flow control valves(1) and flow to the cooling benches(6) that are communicated with the flow control valves(1). The cooling water flowing through the cooling benches(6) is converged into the diverter (2), and is then fed back to the water tank(5) after flowing through one or several condensers(3). The cooling system of the present invention is realized in water circulation cooling method. The control unit has reliable temperature control means for each cooling bench, so as to ensure that all of the components to be cooled, which includes a vehicle controller and a motor, can operate within the temperature range required for their respective testing.


Patent
Chery Automobile Co. | Date: 2011-04-27

A locking device for a sliding door includes an outer handle (10) provided on outside surface of the sliding door, a cable (20), a door lock switching element on inside surface of the sliding door, an unlocking lever/string (30) and a lock (70). Wherein, the outer handle (10) is joined with the door lock switching element on inside surface of the sliding door via the cable (20). The door lock switching element is joined with the lock (70) via the unlocking lever/string (30).


Patent
Chery Automobile Co. | Date: 2011-05-11

An engine including a cylinder head, a camshaft bearing cap fixed on the cylinder head through a locating pin and a bolt, and a rocker shaft, a rocker, a hydraulic tappet and the camshaft supported on the camshaft bearing cap, wherein a main oil-feeding passage that extends to the hole of the main journal of the camshaft and the center position of the internal part of the camshaft bearing cap from the cylinder head is provided inside the cylinder head, an oil passage that connects the main oil-feeding passage to a central installation hole of the rocker shaft and a plurality of secondary oil passages that connect the installation holes at two sides of the rocker shaft to the holes of the secondary journals of the camshaft, an oil passage of the rocker shaft that connects the central installation hole of the rocker shaft to the installation holes at two sides of the rocker shaft and to the installation holes of each rocker is provided inside the rocker shaft, an oil passage of the rocker that connects the installation holes of rockers to the interior of the hydraulic tappet is provided inside the rockers. The internal oil passage of the engine adopts the design of feeding the oil from the middle part, and is easy to be processed and can be reliably lubricated. The engine is featured by simple structure, low cost and reliable lubrication.


Patent
Chery Automobile Co. | Date: 2011-05-11

A method for controlling the air intake vortex of a diesel engine comprising the following steps: the open-loop control amount and the closed-loop control amount of the vortex are determined and the control modes are selected according to the operation condition of the engine; if the open-loop control mode is adopted, the control amount (X)of open-loop is directly used for adjusting a vortex valve; if the open-closed-loop control mode is adopted, the open-loop control amount (X) and the closed-loop control amount are employed in combination for the adjustment of the vortex valve. By combining the open-loop control mode with the open-closed-loop control mode and adopting a self-adaptive calculating method in the open-closed-loop control mode, this method enable the vortex intensity respond to the requirement of mixed fuel burning quickly and accurately so as to realize simultaneously sound engine efficiency, fuel cost economy and less environmental impact while ensuring good comfort of driving and meeting new requirements of modern automobiles. This method can be used to quickly and accurately control the vortex intensity so as to meet the requirements of the diesel engine under various operating conditions.


Patent
Chery Automobile Co. | Date: 2011-04-13

A variable valve lift system for an internal combustion engine includes a roller rocker lift mechanism and a driving mechanism. A cam (7) and a roller (8) of the roller rocker lift mechanism are cooperated with each other so as to control the valve lift. The driving mechanism can output straight-line displacement driving force. The roller rocker lift mechanism includes a second rocker arm (10), wherein one end of the second rocker arm (10) is connected with an output portion of the driving mechanism by a rotation pin (16) so as to create a straight-line displacement by the driving force of the driving mechanism; the second rocker arm (10) is provided with a guideway in the direction of the straight-line displacement; a rocker-arm pin (14) in the center of valve rocker arms (15,15) of the roller rocker lift mechanism is set in the guideway of the second rocker arm (10); the rocker-arm pin (14) can slide in the guideway of the second rocker arm (10). According to actual work condition of the internal combustion engine, the valve lift is regulated by a motor; and continuous variable valve lift is provided from low speed to high speed. The internal combustion engine is provided with the best valve lift in work condition range.


Patent
Chery Automobile Co. | Date: 2011-04-27

A press mould comprises lower mould(9), upper mould(3), working limiter(6) and rigid storing restrictor(2). The lower mould(9) and the upper mould(3) are coupled each other by guide post(1) having guiding function so that they can move relative to each other. The working limiter(6) and the rigid storing limiter (2) are located between the lower mould(9) and the upper mould(3). The press mould also includes at least one elastic storing limiter provided between the upper mould(3) and the lower mould(9).


Patent
Chery Automobile Co. | Date: 2011-05-25

The present invention relates to a hydraulic camshaft and its control system; when the engine runs in high and intermediate load, ECU respectively issues four groups of shift signals to the solenoid valve corresponding to the signals of the cam phase sensor. The solenoid valve then changes the oil pressure of the oil channels in the four hydraulic units on the camshaft. The status of the hydraulic units of every two neighboring cylinders is opposite to each other; on-off shift occurs when the cam of each cylinder rotates to the base circle position in orders. The present invention is simple in structure and is practical. The gas intake valve provided in this invention is characteristic of two-stage lift. The engine performance and economical efficiency are improved, and the emission is reduced.

Loading Chery Automobile Co. collaborators
Loading Chery Automobile Co. collaborators