CN103148121B - Starting auxiliary device and starting method for vehicle with manual transmission - Google Patents
Starting auxiliary device and starting method for vehicle with manual transmission Download PDFInfo
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- CN103148121B CN103148121B CN201310065084.2A CN201310065084A CN103148121B CN 103148121 B CN103148121 B CN 103148121B CN 201310065084 A CN201310065084 A CN 201310065084A CN 103148121 B CN103148121 B CN 103148121B
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Abstract
The invention discloses a starting auxiliary device and a starting method for a vehicle with a manual transmission, which relate to a power transmission technique and are used for solving the problem that the vehicle with the manual transmission is easy to misfire during starting. The starting device comprises a clutch pedal, a clutch main pump, a liquid storage tank, a clutch auxiliary pump and a clutch separation device connected with the clutch auxiliary pump, wherein the clutch main pump is controlled by the clutch pedal to pump oil in the liquid storage tank into the clutch auxiliary pump; the clutch separation device is pushed by the oil in the clutch auxiliary pump to engage; and a power varying mechanism is connected between the clutch main pump and the clutch auxiliary pump and used for adjusting the pumping rate of the oil pumped into the clutch auxiliary pump according to a difference in value between the practical speed of releasing the clutch pedal and the critical speed of releasing the clutch pedal during the starting of the vehicle, and at the pumping rate of the oil, the clutch auxiliary pump pushes the clutch separation device to engage, as a result, the vehicle is driven to stably start. The starting auxiliary device and the starting method, disclosed by the invention, are used for assisting the vehicle with the manual transmission in stably starting.
Description
Technical field
The present invention relates to power transmission technology, particularly relate to starting auxiliary device and the method for starting of manual transmission vehicles.
Background technique
The clutch system of hydraulic drive is between motor and speed changer, comprise clutch pedal, clutch master cylinder, liquid container, clutch slave cylinder, the clutch release assembly that is connected with clutch slave cylinder, fluid in liquid container is pumped in clutch slave cylinder by clutch pedal solenoidoperated cluthes master cylinder, and the fluid in clutch slave cylinder promotes clutch release assembly and engages to realize the transmission of power of motor to speed changer.
When vehicle start, driver slowly releases the clutch pedal, and the fluid in oil storage tank is slowly pumped in clutch slave cylinder to promote the slow joint of clutch release assembly thus to drive vehicle gentle start.But for the driver that driving manual transmission vehicles is lacked experience; often there will be the situation faster that releases the clutch pedal; will cause being pumped into fluid in clutch slave cylinder so too fast thus cause clutch release assembly slowly not engage, result just likely causes the power of motor not to be transferred to efficiently in speed changer making vehicle flame-out when starting to walk.
The main method that current solution vehicle easily stops working when starting to walk is by strengthening Power output when starting to walk, but engine power can be caused like this to waste, and increases oil consumption.
Summary of the invention
Embodiments of the invention provide a kind of starting auxiliary device and method for starting of manual transmission vehicles, solve the problem that manual transmission vehicle easily stops working when starting to walk under the prerequisite not increasing oil consumption.
For achieving the above object, embodiments of the invention adopt following technological scheme:
The starting auxiliary device of manual transmission vehicles of the present invention comprises clutch pedal, clutch master cylinder, liquid container, clutch slave cylinder, the clutch release assembly be connected with clutch slave cylinder, fluid in liquid container is pumped in clutch slave cylinder by described clutch pedal solenoidoperated cluthes master cylinder, fluid in clutch slave cylinder promotes clutch release assembly and engages, wherein, this starting auxiliary device also comprises the variable force mechanism be connected between clutch master cylinder and clutch slave cylinder, described variable force mechanism is for adjusting the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start, described clutch slave cylinder promotes the joint of clutch release assembly to drive vehicle gentle start under the speed of this fluid.
Specifically, described variable force mechanism comprises the pump housing and is located at the piston in the pump housing, described piston is connected with central control unit, the described pump housing is connected described clutch master cylinder by master cylinder oil pipe, is connected clutch slave cylinder by wheel cylinder oil pipe, and the speed that central control unit moves according to the difference control piston of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start is to adjust the speed to clutch slave cylinder pumping fluid.
Preferably, described central control unit comprises ECU (Electrical Control Unit) and the motor of electrical connection, and motor rotates as the mechanism of straight line motion is connected with piston by becoming; The actual transfer moment of torsion of clutch when described ECU (Electrical Control Unit) releases the clutch pedal with actual velocity for calculating, and the starting moment of torsion of the actual transfer moment of torsion of described clutch with clutch when releasing the clutch pedal with critical velocity is made comparisons, and when the actual transfer moment of torsion of described clutch is less than starting moment of torsion, the difference of moment of torsion is outputted in motor; Described motor is used for controlling it with certain rotational speed according to the difference of described moment of torsion, and is the speed of piston movement by become rotation be the mechanism of straight line motion by the transformation of speed of motor.
Secondly, described ECU (Electrical Control Unit) also for judging whether vehicle is starting state, if judged result is otherwise does not carry out the calculating of the actual transfer moment of torsion of clutch.
Further, described piston is connected with spring, and described spring connects the described mechanism becoming rotation and be straight line motion by dunnage.
The method for starting in the present invention with the manual transmission vehicles of above-mentioned starting auxiliary device comprises:
Step 1, variable force mechanism adjusts the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start.
Step 2, clutch slave cylinder promote clutch release assembly according to the speed of the fluid after adjustment and engage thus drive vehicle gentle start.
Wherein, above-mentioned steps 1 is specially the difference of the critical velocity released the clutch pedal when central control unit obtains the actual velocity and vehicle start that release the clutch pedal and the speed of moving according to the difference control piston of this speed thus the speed of modulating to clutch slave cylinder pumping fluid.
Preferably, step 1 comprises: ECU (Electrical Control Unit) calculates the actual transfer moment of torsion of clutch when releasing the clutch pedal with actual velocity, and the actual transfer moment of torsion of described clutch and the starting moment of torsion of vehicle when releasing the clutch pedal with critical velocity are made comparisons, and when the actual transfer moment of torsion of described clutch is less than the starting moment of torsion of vehicle, the difference of moment of torsion is outputted in motor; Described motor controls it with certain rotational speed according to the difference of described moment of torsion, and to rotate be the mechanism of straight line motion be the speed of piston movement by the transformation of speed of motor by becoming.
Further, before the current torque calculating clutch, also comprise whether identification vehicle is starting state, if it is calculate the actual transfer moment of torsion of clutch when releasing the clutch pedal with actual velocity.
The starting auxiliary device of the manual transmission vehicles provided according to the embodiment of the present invention and method for starting, because this starting auxiliary device comprises the variable force mechanism be connected between clutch master cylinder and clutch slave cylinder, described variable force mechanism is for adjusting the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start, described clutch slave cylinder promotes the joint of clutch release assembly to drive vehicle gentle start under the speed of this fluid.Therefore when causing fluid with when speed is pumped to clutch slave cylinder faster due to too fast releasing the clutch pedal, variable force mechanism can be pumped to the speed of the fluid of clutch slave cylinder to the corresponding reduction of difference of the critical velocity released the clutch pedal during vehicle gentle start thus clutch release assembly is slowly engaged according to the actual velocity released the clutch pedal, thus drive vehicle gentle start, avoid vehicle start to stop working.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
The structural representation of the starting auxiliary device of the manual transmission vehicles that Fig. 1 provides for the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under the prerequisite of not making creative work, belongs to the scope of protection of the invention.
As shown in Figure 1, embodiments provide a kind of starting auxiliary device of manual transmission vehicles, this starting auxiliary device comprises clutch pedal 1, clutch master cylinder 2, liquid container 5, clutch slave cylinder 3, the clutch release assembly 4 be connected with clutch slave cylinder 3, fluid in liquid container 5 is pumped in clutch slave cylinder 3 by clutch pedal 1 solenoidoperated cluthes master cylinder 2, fluid in clutch slave cylinder 3 promotes clutch release assembly 4 and engages, wherein, this starting auxiliary device also comprises the variable force mechanism be connected between clutch master cylinder 2 and clutch slave cylinder 3, described variable force mechanism be used for according to release the clutch pedal 1 actual velocity and vehicle start time release the clutch pedal 1 the difference of critical velocity adjust speed to clutch slave cylinder 3 pumping fluid, clutch slave cylinder 3 promotes the joint of clutch release assembly 4 to drive vehicle gentle start under the speed of this fluid.
In the starting auxiliary device of the manual transmission vehicles provided in the embodiment of the present invention, because this starting auxiliary device comprises the variable force mechanism be connected between clutch master cylinder and clutch slave cylinder, described variable force mechanism is for adjusting the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start, described clutch slave cylinder promotes the joint of clutch release assembly to drive vehicle gentle start under the speed of this fluid.Therefore when causing fluid with when speed is pumped to clutch slave cylinder faster due to too fast releasing the clutch pedal, variable force mechanism can be pumped to the speed of the fluid of clutch slave cylinder to the corresponding reduction of difference of the critical velocity released the clutch pedal during vehicle gentle start thus clutch release assembly is slowly engaged according to the actual velocity released the clutch pedal, thus drive vehicle gentle start, avoid vehicle start to stop working.
Specifically, the piston 64 that described variable force mechanism comprises the pump housing 61 and is located in the pump housing 61, piston 64 is connected with central control unit, the pump housing 61 is connected clutch master cylinder 2 by master cylinder oil pipe 62, is connected clutch slave cylinder 3 by wheel cylinder oil pipe 63, and the speed that central control unit moves according to the difference control piston of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start is to adjust the speed to clutch slave cylinder pumping fluid.In this embodiment, the working principle of variable force mechanism is: in the condition shown in figure 1, when release the clutch pedal 1 time clutch master cylinder 2 in fluid to be then finally pumped in clutch slave cylinder 3 through master cylinder oil pipe 62, the pump housing 61 and wheel cylinder oil pipe 63 thus to promote clutch release assembly 4 and engage.When driver with speed faster release the clutch pedal 1 time, fluid in clutch master cylinder 2 will with speed faster to master cylinder oil pipe 62 pumping, now central control unit controls according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle gentle start the speed that control piston 64 moves downward the volume of the pump housing 61 is increased with certain speed, then slowed down to the speed of pumping fluid in clutch slave cylinder 3 like this, the engaging speed of clutch release assembly 4 is also corresponding to be slowed down, and ensure that the gentle start of vehicle.
Preferably, the central control unit in above-described embodiment comprises ECU (Electrical Control Unit) 67 and the motor 66 of electrical connection, and motor 66 rotates as the mechanism 65 of straight line motion is connected with piston 64 by becoming; The actual transfer moment of torsion of clutch when ECU (Electrical Control Unit) 67 releases the clutch pedal with actual velocity for calculating, and the starting moment of torsion of the actual transfer moment of torsion of clutch with clutch when releasing the clutch pedal with critical velocity is made comparisons, and when the actual transfer moment of torsion of clutch is less than starting moment of torsion, the difference DELTA T of moment of torsion is outputted in motor 66; Motor 66 rotates with certain rotating speed n for controlling it according to the difference DELTA T of moment of torsion, and to rotate be the speed v1 that the rotating speed n of motor to be transformed to the motion of piston by the mechanism of straight line motion by becoming.Concrete control principle is see following formula:
ΔT＝k*9550*P/n；v1＝n*180/π/t；
Wherein, k is application factor, and P is power of motor, and n is motor speed, and t is the time of vehicle start of releasing the clutch pedal.Here k is the application factor obtained according to the volume of the pump housing of clutch master cylinder volume, clutch slave cylinder volume, variable force mechanism and each factors optimization such as pipeline diameter, engine speed, gear of master cylinder oil pipe and wheel cylinder oil pipe.
Wherein, change is rotated as the mechanism of straight line motion can be the structures such as leading screw, screw rod, gear.
Secondly, described ECU (Electrical Control Unit) also for judging whether vehicle is starting state, if judged result is otherwise does not carry out the actual transfer torque arithmetic of clutch.If this is because when vehicle is in the non-driveaway operations such as the gearshift in traveling, vehicle generally can not stop working because of the excessive velocities released the clutch pedal, and therefore ECU (Electrical Control Unit) just need not carry out the calculating of actual transfer moment of torsion, reduce the data processing of ECU (Electrical Control Unit).
Further, piston 64 is connected with spring 69, and spring 69 connects the mechanism 65 becoming and rotate as straight line motion by dunnage 68.Such dunnage 68 is for fixing spring 69, and spring 69 plays the effect of buffering, makes the motion of piston 64 more steady.
The embodiment of the present invention additionally provides a kind of method for starting with the manual transmission vehicles of above-mentioned starting auxiliary device and comprises:
Step 1, variable force mechanism adjusts the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start.
Step 2, clutch slave cylinder promote clutch release assembly according to the speed of the fluid after adjustment and engage thus drive vehicle gentle start.
According to the method for starting of the manual transmission vehicles that the embodiment of the present invention provides, because variable force mechanism adjusts speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start, clutch slave cylinder promotes clutch release assembly according to the speed of the fluid after adjustment and engages thus drive vehicle gentle start.Therefore when causing fluid with when speed is pumped to clutch slave cylinder faster due to too fast releasing the clutch pedal, variable force mechanism can be pumped to the speed of the fluid of clutch slave cylinder to the corresponding reduction of difference of the critical velocity released the clutch pedal during vehicle gentle start thus clutch release assembly is slowly engaged according to the actual velocity released the clutch pedal, thus drive vehicle gentle start, avoid vehicle start to stop working.
Wherein, above-mentioned steps 1 is specially the difference of the critical velocity released the clutch pedal when central control unit obtains the actual velocity and vehicle start that release the clutch pedal and the speed of moving according to the difference control piston of this speed thus the speed of modulating to clutch slave cylinder pumping fluid.
Preferably, step 1 comprises: ECU (Electrical Control Unit) calculates the actual transfer moment of torsion of clutch when releasing the clutch pedal with actual velocity, and the actual transfer moment of torsion of described clutch and the starting moment of torsion of vehicle when releasing the clutch pedal with critical velocity are made comparisons, and when the actual transfer moment of torsion of described clutch is less than the starting moment of torsion of vehicle, the difference of moment of torsion is outputted to motor; Described motor controls it with certain rotational speed according to the difference of described moment of torsion, and to rotate be the mechanism of straight line motion be the motion of piston by the rotational transform of motor by becoming.
Further, ECU (Electrical Control Unit) also comprised and judges whether vehicle is starting state, if judged result is otherwise does not carry out the calculating of the actual transfer moment of torsion of clutch before the actual torque calculating clutch.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; the change that can expect easily or replacement, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (7)
1. the starting auxiliary device of a manual transmission vehicles, comprise clutch pedal, clutch master cylinder, liquid container, clutch slave cylinder, the clutch release assembly be connected with clutch slave cylinder, fluid in liquid container is pumped in clutch slave cylinder by described clutch pedal solenoidoperated cluthes master cylinder, fluid in clutch slave cylinder promotes clutch release assembly and engages, it is characterized in that, also comprise the variable force mechanism be connected between clutch master cylinder and clutch slave cylinder, described variable force mechanism is for adjusting the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start, described clutch slave cylinder promotes the joint of clutch release assembly to drive vehicle gentle start under the speed of this fluid,
Described variable force mechanism comprises the pump housing and is located at the piston in the pump housing, described piston is connected with central control unit, the described pump housing is connected described clutch master cylinder by master cylinder oil pipe, is connected clutch slave cylinder by wheel cylinder oil pipe, and the speed that central control unit moves according to the difference control piston of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start is to adjust the speed to clutch slave cylinder pumping fluid;
Described central control unit comprises ECU (Electrical Control Unit) and the motor of electrical connection, and motor rotates as the mechanism of straight line motion is connected with piston by becoming; The actual transfer moment of torsion of clutch when described ECU (Electrical Control Unit) releases the clutch pedal with actual velocity for calculating, and the starting moment of torsion of the actual transfer moment of torsion of described clutch with clutch when releasing the clutch pedal with critical velocity is made comparisons, and when the actual transfer moment of torsion of described clutch is less than starting moment of torsion, the difference of moment of torsion is outputted in motor; Described motor is used for controlling it with certain rotational speed according to the difference of described moment of torsion, and is the speed of piston movement by become rotation be the mechanism of straight line motion by the transformation of speed of motor.
2. starting auxiliary device according to claim 1, is characterized in that, described ECU (Electrical Control Unit) also for judging whether vehicle is starting state, if judged result is otherwise does not carry out the calculating of the actual transfer moment of torsion of clutch.
3. starting auxiliary device according to claim 2, is characterized in that, described piston is connected with spring, and described spring connects the described mechanism becoming rotation and be straight line motion by dunnage.
4. there is a method for starting for the manual transmission vehicles of the starting auxiliary device according to any one of claim 1-3, it is characterized in that, comprising:
Step 1, variable force mechanism adjusts the speed to clutch slave cylinder pumping fluid according to the difference of the critical velocity released the clutch pedal when the actual velocity released the clutch pedal and vehicle start;
Step 2, clutch slave cylinder promote clutch release assembly according to the speed of the fluid after adjustment and engage thus drive vehicle gentle start.
5. the method for starting of manual transmission vehicles according to claim 4, it is characterized in that, step 1 is specially the difference of the critical velocity released the clutch pedal when central control unit obtains the actual velocity and vehicle start that release the clutch pedal and the speed of moving according to the difference control piston of this speed thus the speed of modulating to clutch slave cylinder pumping fluid.
6. the method for starting of manual transmission vehicles according to claim 5, it is characterized in that, step 1 comprises: ECU (Electrical Control Unit) calculates the actual transfer moment of torsion of clutch when releasing the clutch pedal with actual velocity, and the actual transfer moment of torsion of described clutch and the starting moment of torsion of vehicle when releasing the clutch pedal with critical velocity are made comparisons, and when the actual transfer moment of torsion of described clutch is less than the starting moment of torsion of vehicle, the difference of moment of torsion is outputted in motor; Described motor controls it with certain rotational speed according to the difference of described moment of torsion, and to rotate be the mechanism of straight line motion be the speed of piston movement by the transformation of speed of motor by becoming.
7. method according to claim 6, is characterized in that, ECU (Electrical Control Unit) also comprised and judges whether vehicle is starting state, if judged result is otherwise does not carry out the calculating of the actual transfer moment of torsion of clutch before the actual torque calculating clutch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065084.2A CN103148121B (en) | 2013-02-28 | 2013-02-28 | Starting auxiliary device and starting method for vehicle with manual transmission |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310065084.2A CN103148121B (en) | 2013-02-28 | 2013-02-28 | Starting auxiliary device and starting method for vehicle with manual transmission |
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| CN103148121A CN103148121A (en) | 2013-06-12 |
| CN103148121B true CN103148121B (en) | 2015-07-15 |
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| CN201310065084.2A Active CN103148121B (en) | 2013-02-28 | 2013-02-28 | Starting auxiliary device and starting method for vehicle with manual transmission |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858271A1 (en) * | 1998-12-17 | 2000-06-21 | Wabco Gmbh & Co Ohg | Actuating device for a clutch |
| CN2864222Y (en) * | 2005-11-16 | 2007-01-31 | 张耿 | Clutch operation device with bond buffer function |
| EP1750026A1 (en) * | 2005-08-04 | 2007-02-07 | Peugeot Citroën Automobiles S.A. | Assistance device for hydraulic clutch control, specially for a motor vehicle |
| CN202200967U (en) * | 2011-05-30 | 2012-04-25 | 山东理工大学 | Ramp starting aid for automobile with manual transmission |
| CN202392007U (en) * | 2011-12-14 | 2012-08-22 | 浙江金刚汽车有限公司 | Auxiliary system of automobile clutch |
| CN102705397A (en) * | 2012-06-14 | 2012-10-03 | 北京理工大学 | Air-boosting hydraulically driven clutch execution mechanism |
-
2013
- 2013-02-28 CN CN201310065084.2A patent/CN103148121B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19858271A1 (en) * | 1998-12-17 | 2000-06-21 | Wabco Gmbh & Co Ohg | Actuating device for a clutch |
| EP1750026A1 (en) * | 2005-08-04 | 2007-02-07 | Peugeot Citroën Automobiles S.A. | Assistance device for hydraulic clutch control, specially for a motor vehicle |
| CN2864222Y (en) * | 2005-11-16 | 2007-01-31 | 张耿 | Clutch operation device with bond buffer function |
| CN202200967U (en) * | 2011-05-30 | 2012-04-25 | 山东理工大学 | Ramp starting aid for automobile with manual transmission |
| CN202392007U (en) * | 2011-12-14 | 2012-08-22 | 浙江金刚汽车有限公司 | Auxiliary system of automobile clutch |
| CN102705397A (en) * | 2012-06-14 | 2012-10-03 | 北京理工大学 | Air-boosting hydraulically driven clutch execution mechanism |
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| Publication number | Publication date |
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| CN103148121A (en) | 2013-06-12 |
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