CN114718966A - Dual clutch automatic electronically controlled clutch actuator - Google Patents

Abstract

An automatic electrically controlled clutch actuator for a dual clutch, comprising: the double-winding motor stator consists of an inner winding mechanism and an outer winding mechanism, the controller is integrated in a finished automobile TCU, and the sensing mechanism is arranged at the bottom of the inner winding mechanism and the bottom of the outer winding mechanism; the sensing mechanism includes: the double-winding rotary transformer comprises a double-winding rotary transformer stator and double-winding rotary transformer rotors, wherein the double-winding rotary transformer stator is arranged at the bottom of the double-winding motor stator, and the double-winding rotary transformer rotors are arranged on two sides of the double-winding rotary transformer stator. According to the invention, the double-winding motor, the double-winding rotary transformer, the ball screw mechanism and the clutch release bearing are all integrated on the shell, so that the whole structure is more compact, the volume is smaller, the transmission efficiency is higher, the precision is high and the cost is lower; the controller effectively compensates the abrasion of the clutch driven disc by adjusting the number of turns, the angle and the rotating speed of the inner rotor and the outer rotor, reduces the shaking in the double clutch gear shifting process and reduces the matching difficulty.

Description

Dual clutch automatic electronically controlled clutch actuator

technical field

The invention relates to a technology in the field of motor vehicle power and transmission, in particular to a dual-clutch automatic electronically controlled clutch actuator.

Background technique

The existing manual clutch actuator is a hydraulic system composed of main cylinder, auxiliary cylinder, oil pot, high-pressure oil pipe, low-pressure oil pipe, air release valve, etc. The main cylinder drives the rigid medium to form high pressure and transmits the rigid medium in its cavity to the auxiliary cylinder. The high-pressure medium is formed in the cylinder and the auxiliary cylinder, and the movement of the driving state sealing ring drives the piston and the bearing to move forward. The bearing is in contact with the clutch diaphragm spring, forming a lever principle to combine/separate the clutch pressure plate and the driven plate; when it needs to be released , the high pressure of the rigid medium in the cavity is released, and the diaphragm spring uses elastic force to push the bearing and the piston back to their original positions, realizing the separation/combination of the clutch pressure plate and the driven plate.

The dual-clutch automatic actuator corresponds to the C1 and C2 diaphragm springs of the dual-clutch through two independent hydraulic clutch actuators, and the two hydraulic clutch actuators control the odd/even gears respectively. Usually, it realizes the control of the actuator by combining the motor and the plunger pump or the electronic pump and the solenoid valve as the operating mechanism. The operating mechanism and the actuator are generally independent structures, resulting in large volume and pipeline Complex, low transmission efficiency, slow response, low precision and high cost.

SUMMARY OF THE INVENTION

Aiming at the above-mentioned shortcomings of the prior art, the present invention proposes a dual-clutch automatic electronically controlled clutch actuator. By integrating a dual-winding motor and a dual-winding rotary transformer as a sensing mechanism, a ball screw mechanism and a clutch release bearing in a shell Physically, it can reduce the weight of the actuator, without regular maintenance, without leakage problems, fast response, high precision and lower cost; and through the setting of external dust-proof shaft seal and self-lubricating support ring, the automatic electronically controlled clutch can be effectively improved The service life of the actuator; the controller can effectively compensate the wear of the clutch driven disc by adjusting the number of turns, angles and rotational speeds of the inner and outer rotors, reducing the jitter during the dual clutch shifting process and reducing the difficulty of matching.

The present invention is achieved through the following technical solutions:

The invention includes: a casing and a double-winding motor stator, a sensing mechanism, a controller, an inner winding mechanism and an outer winding mechanism arranged on the casing, wherein: the double-winding motor stator is composed of an inner winding mechanism and an outer winding mechanism, and controls The sensor is arranged in the TCU of the whole vehicle, and the sensing mechanism is arranged at the bottom of the inner winding mechanism and the outer winding mechanism.

The inner winding mechanism includes: an inner rotor, an inner bush, an inner ball screw, an inner clutch release bearing and an inner support bearing, wherein: the inner bush is arranged on one side of the inner rotor and rotates synchronously with it, and the inner ball screw is arranged On one side of the inner bush and axially advancing and retreating with it, the inner clutch release bearing is in interference fit with the inner ball screw, and the inner support bearing is arranged at the bottom of the inner rotor.

The outer winding mechanism includes: an outer rotor, an outer bush, an outer ball screw, an outer clutch release bearing and an outer support bearing, wherein: the outer bush is arranged on one side of the outer rotor and rotates synchronously with it, and the outer ball screw is arranged On one side of the outer bush and axially advance and retreat when it rotates, the outer clutch release bearing and the outer ball screw are in interference fit, and the outer support bearing is arranged at the bottom of the outer rotor.

The sensing mechanism includes: a dual-winding resolver stator and a dual-winding resolver rotor, wherein the dual-winding resolver stator is arranged at the bottom of the dual-winding motor stator, and the dual-winding resolver rotor is arranged on both sides of the dual-winding resolver stator.

The inner ball screw is provided with an inner dustproof shaft seal for dustproof and waterproof, wherein: the inner dustproof shaft seal is connected with the casing.

The outer ball screw is provided with an outer dust-proof shaft seal for dust and water resistance, wherein: the outer dust-proof shaft seal is connected with the casing.

The inner ball screw is provided with an inner self-lubricating support ring for reducing friction, wherein: the inner self-lubricating support ring is connected with the housing and arranged at the bottom of the inner dust-proof shaft seal.

The outer ball screw is provided with an outer self-lubricating support ring for reducing friction, wherein: the outer self-lubricating support ring is connected with the housing and arranged at the bottom of the outer dust-proof shaft seal.

The controller includes: a double-winding motor controller and a sensor processor, wherein the sensor processor is connected to the sensor mechanism and collects information on the angle, the number of turns, and the rotation direction, and outputs the information after decoding. To the dual-winding motor controller, the dual-winding motor controller outputs the dual-winding motor speed, torque and commutation commands to the dual-winding motor.

technical effect

The invention as a whole solves the problems in the prior art that the volume is large, the components are scattered, the transmission efficiency is low, it is difficult to realize the electrification of the whole vehicle, and the integration is difficult.

Compared with the prior art, the present invention integrates the double-winding motor, the double-winding rotary transformer, the ball screw mechanism and the clutch release bearing on the housing, and uses a set of double-winding motors to independently control the odd/even numbers of the double clutches. Gear clutch open/close function; it can make the actuator structure more compact, smaller in size, higher in transmission efficiency, fast in response, high in precision and lower in cost; and through the external dust-proof shaft seal, self-lubricating support ring The setting can effectively improve the service life of the automatic electronically controlled clutch actuator.

In order to save space, the present invention also uses the acquisition mechanism integration scheme in the sensing mechanism. The preferred reluctance type double-winding rotary transformer has the advantages of long service life and high precision; at the same time, in order to reduce the volume, the double-winding motor , Hall sensor and magnetic steel or double-winding resolver, ball screw mechanism and clutch release bearing are all integrated on the shell; at the same time, the use of screw reduction mechanism effectively reduces the torque demand for the double-winding motor and reduces the output loss; At the same time, an independent controller is used to control a set of double-winding motors. The odd-numbered/even-numbered gear clutches of the dual-clutch are independently controlled to open/close the clutches. The forward and reverse rotation speeds of the rotor can be adjusted independently through independent control. The time is reduced, thereby reducing the jitter during the dual-clutch shifting process; at the same time, the speed and stroke of forward and reverse rotation can be dynamically adjusted and compensated according to the wear state of the dual-clutch driven plate, so as to improve the continuity of power output, improve driving and improve driving comfort. ; And by adjusting the number of turns and the angle of the double-winding motor, the maximum and minimum extension positions of the clutch actuator can be adjusted, covering more types of clutches, and reducing the difficulty of matching the whole vehicle.

Description of drawings

Fig. 1 is the front view of the overall structure of the present invention;

2 is a top view of a double-winding motor with an overall structure of the present invention;

3 is a schematic structural diagram of a sensing mechanism of the present invention;

In the figure: double-winding motor stator 1, inner rotor 2, inner bushing 3, outer rotor 4, outer bushing 5, controller 6, dual-winding resolver rotor 7, dual-winding resolver stator 8, inner ball screw 9 , outer ball screw 10, inner clutch release bearing 11, outer clutch release bearing 12, inner support bearing 13, outer support bearing 14, housing 15, inner self-lubricating support ring 16, outer sub-lubricating support ring 17, inner dustproof Shaft seal 18 , outer dustproof shaft seal 19 , sensing mechanism 20 , inner winding structure 21 and outer winding mechanism 22 .

Detailed ways

As shown in FIGS. 1-3 , a dual-clutch automatic electronically controlled clutch actuator involved in this embodiment includes: a casing 15 , a double-winding motor stator 1 disposed on the casing 15 , and a sensing mechanism 20 , controller 6, inner winding structure 21 and outer winding mechanism 22 Among them: the double-winding motor stator 1 is composed of an inner winding mechanism 21 and an outer winding mechanism 22, and the controller 6 is integrated in the vehicle TCU to control the angle of the winding rotor , the number of turns and the rotational speed, the sensing mechanism 20 is arranged at the bottom of the inner winding mechanism and the outer winding mechanism.

The inner winding mechanism 21 includes: an inner rotor 2, an inner bushing 3, an inner ball screw 9, an inner clutch release bearing 11 and an inner support bearing 13, wherein: the inner bushing 3 is arranged on one side of the inner rotor 2 and is connected with it. Synchronous rotation, the inner ball screw 9 is arranged on one side of the inner bushing 3 and rotates with it to produce independent axial advance and retreat, the inner clutch release bearing 11 and the inner ball screw 9 are in interference fit and axially advance and retreat with it, and the inner support bearing 13 is arranged at the bottom of the inner rotor 2 to provide support and reduce rotational torque.

The outer winding mechanism 22 includes: an outer rotor 4, an outer bushing 5, an outer ball screw 10, an outer clutch release bearing 12 and an outer support bearing 14, wherein: the outer bushing 5 is arranged on one side of the outer rotor 4 and is connected with it. Synchronous rotation, the outer ball screw 10 is arranged on one side of the outer bushing 5 and rotates with it to produce independent axial advance and retreat, the outer clutch release bearing 12 and the outer ball screw 10 are in interference fit and axially advance and retreat with it, the outer support bearing 14 is arranged at the bottom of the outer rotor 4 to provide support and reduce rotational torque.

The sensing mechanism 20 includes: a double-winding resolver rotor 7 and a double-winding transformer stator 8, wherein: the double-turning transformer stator 8 is arranged at the bottom of the double-winding motor stator 1, and the double-winding resolver rotor 7 is arranged at the double-turning transformer. Both sides of the stator 8 .

The sensing mechanism can also be realized by using a Hall sensor and a magnetic steel, wherein: the Hall sensor is arranged on the bottom of the stator of the double-winding motor, and the magnetic steel is arranged on both sides of the stator of the double-winding rotary transformer.

The controller 6 is integrated in the TCU of the whole vehicle, and dynamically adjusts the maximum and minimum elongation positions of the actuator by adjusting the number of turns and angles of the inner rotor 2 and the outer rotor 4, so as to prevent the wear of the dual clutch driven disc. Dynamic compensation; by controlling the rotational speed and angle of the inner rotor 2 and the outer rotor 4, the axial position and moving speed of the actuator in the shifting process can be adjusted quickly and accurately, and the dynamic adjustment of the actuator during the shifting process can be realized, and the double-clutch shifting process can be reduced. Jitter and reduce matching difficulty.

The inner ball screw 9 is provided with an inner dustproof shaft seal 18 for dustproof and waterproof, wherein: the inner dustproof shaft seal 18 is connected with the housing 15 .

The outer ball screw 10 is provided with an outer dust-proof shaft seal 19 for dust and water resistance, wherein: the outer dust-proof shaft seal 19 is connected with the casing 15 .

The inner ball screw 9 is provided with an inner self-lubricating support ring 16 for reducing friction, wherein: the inner self-lubricating support ring 16 is connected with the housing 15 and is arranged at the bottom of the inner dust-proof shaft seal 18 .

The outer ball screw 10 is provided with an outer self-lubricating support ring 17 for reducing friction, wherein: the outer self-lubricating support ring 17 is connected to the housing 15 and is arranged at the bottom of the outer dust-proof shaft seal 19 .

To sum up, the present invention uses the double-winding motor as the power driving mechanism of the double-clutch actuator for the first time, and the double-winding rotary transformer as the sensing mechanism of the double-clutch actuator. The transformer, ball screw mechanism and clutch release bearing are all integrated on the housing, and the service life of the dual-clutch actuator is improved by the setting of the external dust-proof shaft seal and self-lubricating support ring. The double-winding motor can reduce the power interruption time, dynamically compensate the wear amount of the friction plate, and adjust the maximum and minimum elongation. Wide range of applications, good comfort and lower cost.

The above-mentioned specific implementation can be partially adjusted by those skilled in the art in different ways without departing from the principle and purpose of the present invention. The protection scope of the present invention is subject to the claims and is not limited by the above-mentioned specific implementation. Each implementation within the scope is bound by the present invention.

Claims (7)

1. An automatic automatically controlled clutch actuating mechanism of double clutch which characterized in that includes: casing and the duplex winding motor stator, sensing mechanism, controller, interior winding mechanism and the outer winding mechanism that set up on the casing, wherein: the double-winding motor stator consists of an inner winding mechanism and an outer winding mechanism, the controller is arranged in the shell, and the sensing mechanism is arranged at the bottoms of the inner winding mechanism and the outer winding mechanism;

the sensing mechanism comprises: a double winding resolver stator and a double winding resolver rotor, wherein: the double-winding rotary transformer stator is arranged at the bottom of the double-winding motor stator, and the double-winding rotary transformer rotor is arranged at two sides of the double-winding rotary transformer stator;

the controller includes: a dual winding motor controller and a sensing processor, wherein: the sensing processor is connected with the sensing mechanism and used for acquiring angle, number of turns and rotation direction information, decoding the information and outputting the information to the double-winding motor controller, and the double-winding motor controller outputs the rotating speed, torque and reversing instructions of the double-winding motor to the double-winding motor.

2. The actuator of claim 1 wherein said inner winding means comprises: inner rotor, interior bush, interior ball lead screw, interior clutch release bearing and interior support bearing, wherein: the inner lining sleeve is arranged on one side of the inner rotor and synchronously rotates with the inner rotor, the inner ball screw rod is arranged on one side of the inner lining sleeve and axially moves with the inner lining sleeve, the inner clutch release bearing is in interference fit with the inner ball screw rod, and the inner support bearing is arranged at the bottom of the inner rotor.

3. The actuator of claim 1, wherein said outer winding mechanism comprises: external rotor, outer bush, outer ball lead screw, outer clutch release bearing and outer support bearing, wherein: the outer clutch release bearing is in interference fit with the outer ball screw rod, and the outer support bearing is arranged at the bottom of the outer rotor.

4. The actuator of claim 2 wherein said inner ball screw is provided with an inner dust seal for dust and water protection, wherein: the inner dustproof shaft seal is connected with the shell.

5. The actuator of claim 3 wherein said outer ball screw is provided with an outer dust seal for dust and water protection, wherein: the outer dustproof shaft seal is connected with the shell.

6. An actuator according to claim 2 or 4, wherein said inner ball screw is provided with an inner self-lubricating support ring for reducing friction, wherein: the inner self-lubricating support ring is connected with the shell and arranged at the bottom of the outer dustproof shaft seal.

7. An actuator according to claim 3 or 5, wherein said outer ball screw is provided with an outer self-lubricating support ring for reducing friction, wherein: the outer self-lubricating support ring is connected with the shell and arranged at the bottom of the outer dustproof shaft seal.

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