JPH07102877B2 - Hydraulic oil exchanging device for torque converter - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a converter for operating oil of a torque converter, so-called torque converter oil.

[Prior Art] A torque converter is usually provided with an oil pan T as shown in Fig. 1, and feeds the torque converter oil in the torque converter itself and the torque converter oil in the oil pan T.
The oil is circulated by an oil pump (not shown) driven by the engine through L1 and the return pipe L2.

Therefore, when exchanging the torque converter oil, even if only the torque converter oil in the oil pan T is changed through the oil gauge pipe G, the torque converter oil in the torque converter cannot be changed. Therefore, conventionally, the torque converter oil in the oil pan is drained, new torque converter oil is supplied, and the engine is driven, for example, for 1 minute to drive the oil pan T.
The torque converter oil in the torque converter is guided into the torque converter, the old torque converter oil in the torque converter is discharged to the oil pan T (however, there is a considerable amount of mixed old and new oil in the meantime), and the torque converter oil in the oil pan T is again discharged. 3 to 4 steps for removing the oil and refueling the engine
I exchanged it repeatedly.

Therefore, it is necessary to stop the driving of the engine 3 to 4 times, and the replacement work is troublesome and time-consuming.

Generally, a technique of extracting waste oil and supplying new oil is known, and is disclosed in, for example, Japanese Utility Model Publication No. 60-148299.
However, such a known technique has to stop the engine every time the oil is changed, which is troublesome.

[PROBLEMS TO BE SOLVED BY THE INVENTION] Therefore, an object of the present invention is to provide a hydraulic oil exchanging device for a torque converter which can minimize engine stop and start and can easily perform hydraulic oil exchanging work in a short time. There is.

[Means for Solving the Problems] According to the present invention, a waste oil container and a new oil container are provided in the main body of the apparatus, a working oil removing means for extracting old working oil and sending it to the waste oil container, and a new operation from the new oil container. A hydraulic oil supply means for supplying oil, a load cell for measuring the weight of the extracted hydraulic oil and the weight of the supplied hydraulic oil, a speaker for notifying a work procedure, a keyboard having a switch for inputting an operation instruction, and In a hydraulic oil exchange device for a torque converter having a control device connected to each device, the control device receives a signal from a start switch of a keyboard,
A drive signal is output to the hydraulic oil removing means, the drive signal is stopped when a certain amount of hydraulic oil is extracted in response to a signal from the load cell, and a drive signal is output to the hydraulic oil supplying means to output from the load cell. And a first hydraulic oil exchange control means for outputting a signal for issuing an engine drive notification to a speaker when a certain amount of hydraulic oil is supplied and a hydraulic oil is removed. Means for outputting a drive signal to the means, stopping the drive signal when a certain amount of hydraulic oil is extracted in response to the signal from the load cell, and outputting a drive signal to the hydraulic oil supply means to output the signal from the load cell. When a predetermined amount of hydraulic oil is received and the drive signal is stopped, this operation is executed a plurality of times, and then a second hydraulic oil exchange control means for outputting a signal for issuing an end notification to the speaker. Equipped with That.

[Explanation of Action and Effect] Therefore, when the nozzle is inserted into the oil gauge pipe and the start switch is pushed, the first hydraulic oil exchange control means of the control device receives the signal from the start switch and drives the hydraulic oil removing means. A signal is output and the hydraulic oil removing means is activated to remove hydraulic oil, that is, waste oil. At that time, the amount taken out is measured by the load cell, and when a certain amount is taken out, the drive signal is stopped and the working oil removing means stops the removal of working oil, that is, waste oil. Then, the first hydraulic oil exchange control means outputs a drive signal to the hydraulic oil supply means to supply hydraulic oil, that is, new oil. When a certain amount of hydraulic oil, that is, new oil is supplied, the drive signal is stopped by the signal from the load cell to stop the supply of hydraulic oil. After that, the drive notification of the engine is given from the speaker.

When the engine is driven, the second hydraulic oil exchange control means of the control device outputs a drive signal to the hydraulic oil draining means, and when a certain amount of hydraulic oil is drained, the second hydraulic oil exchange control means is driven by the signal from the load cell. When the signal from the load cell determines that the signal is stopped and a drive signal is output to the hydraulic oil supply means to supply a fixed amount of hydraulic oil, the drive signal is stopped and the operation is counted. Repeat times. Then, the speaker notifies the end of the hydraulic oil replacement work.

As described above, according to the present invention, when the hydraulic oil is exchanged, most of the hydraulic oil can be exchanged at the first time, and then the hydraulic oil can be exchanged while the engine is running. This is notified by the function of the oil exchanging means, and thereafter, the second hydraulic oil exchanging means can automatically perform the exchanging work without any trouble. Therefore, the hydraulic oil replacement work can be performed easily in a short time.

Embodiments Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, a waste oil container 2a mounted on the load cell W and a new oil container 2b are provided at the bottom of the apparatus main body 1.

A pipe 3a is inserted into the waste oil container 2a, and the pipe 3a is connected to a pump P1 via a solenoid valve V1. The pump P1 is connected to the nozzle 5 via the hose 4a, and the waste oil container 2a, the pipe 3a, the electromagnetic valve V1, the pump P1 and the hose 4a constitute a hydraulic oil removing means. Similarly, the new oil container 2b, the pipe 3b, the solenoid valve V2, the pump P2 and the hose 4b constitute a hydraulic oil supply means.

On the other hand, a control device, which is a control unit, is provided on the upper part of the device body 1.
An electric current detector 6 for detecting an ignition current of a plug, which is an engine drive detection means, is connected to the control device 11, and an indicator 7 provided on an upper part of the device body 1 and a preset amount. A display 8, a keyboard 9 having a preset switch, a start switch, a supply switch, a withdrawal switch, a discharge switch, and the like, and a speaker 10 are connected.

In FIG. 2, the control device 11 is composed of a microcomputer, is provided with a central processing unit (CPU) 12, and is connected to each device such as the pumps P1 and P2 via an input / output device (I / O) 13. ing. Therefore, the signal from each device is input to the central processing unit 12 via the input / output device 13, and the central processing unit
A signal from 12 is transmitted to each of the above devices via the input / output device 13. In addition to the central processing unit 12, the control device 11 is provided with a ROM (ROM) 14, a RAM (RAM) 15, and a clock 16.

Next, the operation will be described mainly with reference to FIGS. 3 to 6.

FIG. 3 shows the flow of replacing the torque converter oil.
Is inserted into the oil gauge pipe G, the current detector 6 is set to a plug cable (not shown), and the start switch of the keyboard 9 is pressed (step S1), the controller 11 turns on the solenoid valve V1 and the pump P1 (step S1). S2). And
The withdrawal amount is measured by the load cell W and a predetermined amount Wa (for example, 2 l) of waste oil is withdrawn (step S3). Then, the solenoid valve V
2. Turn on pump P2 (step S4). Then, the amount of refueling is measured by the load cell W, and when a predetermined amount of Wb (for example, 2.8 l) of new oil is supplied (step S5), the electromagnetic detector 6 ignites, for example, "Please drive the engine idling" from the speaker 10. Notification is made until engine drive is detected (steps S6 and S7). (The above is the function of the first hydraulic oil exchange control means). Then, when a predetermined time ta (for example, 1 minute 15 seconds) has elapsed after the current detector 6 detected the engine drive (step S8), the solenoid valve V1 and the pump P1 are turned on (step S9). Then, when a predetermined amount Wc (for example, 2 l) of waste oil is drained (step S10), the solenoid valve V2 and the pump V2 are turned on (step S11). And
Supply a predetermined amount of Wd (for example, 2l) of new oil (step S1
2), a predetermined time tb (for example, 1 minute 4
7 seconds) (Step S13), solenoid valve V1, pump P1
Is turned on (step S14). Then, when a predetermined amount We (for example, 1.3 l) of waste oil is drained (step S15), the solenoid valve V2 and the pump P2 are turned on (step S16). Then, a predetermined amount Wf (for example, 0.8 l, that is, since the oil is extraly supplied in step S5, less than the extracted amount 1.3 l) is supplied with new oil (step S17), and a predetermined time tc after completion of the new oil supply (for example, After 2 minutes (Step S1)
8) From the speaker 10, "I have replaced the torque converter oil. Remove the nozzle 5 from the oil gauge pipe G, insert the oil gauge and check the oil level. As a result, if the level is normal, move to the end flow. ,
If the level is low, perform the replenishment flow and then if the level is high, perform the extraction flow and then move to the end flow "(step S19), and end the control (the above is the second This is the function of the hydraulic oil exchange control means).

FIG. 4 shows a supply flow. When the oil level is low, the preset switch of the keyboard 9 is pressed (step S20) to preset the desired amount Wx (step S2).
1). Then, when the supply switch of the keyboard 9 is pressed (step S22), the control device 11 turns on the solenoid valve V2 and the pump P2 (step S23). Then, the oil supply amount is measured by the load cell W, and when the preset amount Wx of new oil is supplied (step S24), the control ends.

FIG. 5 shows the extraction flow. When the oil level is high, the preset switch of the keyboard 9 is pressed (step S25) to preset the desired amount Wy (step S2).
6). When the extraction switch of the keyboard 9 is pressed (step S27), the control device 11 turns on the solenoid valve V1 and the pump P1 (step S28). Then, the refueling amount is measured by the load cell W, and when the preset amount Wy of new oil is replenished (step S29), the control ends.

FIG. 6 shows the end flow, and the exchange flow shown in FIG.
Alternatively, when the supply flow shown in FIG. 4 or the extraction flow shown in FIG. 5 is completed, the nozzle 5 is turned up to prevent oil from dripping and the extraction switch of the keyboard 9 is turned on (step S30). 11, the solenoid valve V2 is turned on, the pump P2 is turned on in the reverse direction, and the new oil in the hose 4a is returned to the new oil container 2b (step S31). Then, when a predetermined time tx (for example, 5 seconds) has elapsed (step S32), the solenoid valve V1 and the pump P1 are turned on to return the waste oil in the hose 4a to the waste oil container 2a (step S33). Then, when the predetermined time ty has elapsed (step S34), the control ends.

FIG. 7 shows a waste oil processing flow. When the waste oil container 2a becomes full, bring an empty container, insert the nozzle 5 and press the discharge switch of the keyboard 9 (step S40). Turn on V1 and turn on pump P1 to the reverse side to discharge the waste oil from the waste oil container to the empty container (step S4
1). The waste oil container 2a is empty, that is, the load cell W
When there is no change in the detection amount of, the solenoid valve V1 and the pump P1 are turned off to end the control.

[Advantages of the Invention] As described above, according to the present invention, when exchanging the hydraulic oil of the torque converter, the engine is not turned off and on many times for each operation of supplying and discharging the hydraulic oil. After the discharge and supply of the hydraulic oil for the second time, the hydraulic oil can be sequentially supplied and discharged while the engine is running. Therefore, it is easy to change the hydraulic oil without the trouble of starting and stopping the engine, and the working time can be shortened. In addition, it is convenient and easy to understand because there is a voice from the alarm.

[Brief description of drawings]

FIG. 1 is an overall configuration diagram showing an embodiment of the present invention, FIG. 2 is a control block diagram, FIG. 3 is a flow chart of replacement, FIG. 4 is a flow chart of replenishment, and FIG. 5 is a flow chart of extraction. Fig. 6 and Fig. 6 are end flowcharts, Fig. 7
The figure is a flow chart of waste oil processing. G: Oil gauge pipe, P1, P2 ... Pump, V1, V2
…… Solenoid valve, W …… Load cell, 1 …… Device body, 2a…
… Waste oil container, 2b …… New oil container, 4a, 4b …… Hose, 5…
… Nozzle, 6… Current detector, 9… Keyboard, 10…
… Speaker, 11 …… Control device

Claims (1)

[Claims] 1. An apparatus main body, comprising a waste oil container and a new oil container, extracting old operating oil and sending it to the waste oil container, and hydraulic oil supplying means for supplying new operating oil from the new oil container. It has a load cell for measuring the weight of the extracted hydraulic oil and the weight of the supplied hydraulic oil, a speaker for notifying a work procedure, a keyboard having a switch for inputting a work instruction, and a control device connected to each of the above devices. In the hydraulic oil exchange device for the torque converter, the control device receives a signal from the start switch of the keyboard, outputs a drive signal to the hydraulic oil removing means, and receives a signal from the load cell to extract a certain amount of hydraulic oil. When the drive signal is stopped and the drive signal is output to the hydraulic oil supply means, and when a certain amount of hydraulic oil is supplied in response to the signal from the load cell, The drive signal is output to the first hydraulic oil exchange control means for stopping the dynamic signal and then outputting the signal for issuing the engine drive notification to the speaker, and the hydraulic oil draining means, and receiving a signal from the load cell, a predetermined amount. When the hydraulic oil is removed, the drive signal is stopped, and a drive signal is output to the hydraulic oil supply means. When a certain amount of hydraulic oil is supplied in response to the signal from the load cell, the drive signal is output. A hydraulic oil exchanging device for a torque converter, comprising: a second hydraulic oil exchanging control means for stopping the operation, executing the operation a plurality of times, and then outputting a signal for issuing an end notification to the speaker.