JPS628189Y2 - - Google Patents

Description

[Detailed description of the invention] This invention relates to a shift shock mitigation device for a vehicle with an automatic transmission, and is particularly suitable for use in a vehicle with an automatic transmission equipped with an idle up device that increases the idle of the engine. Regarding.

Generally, in a vehicle, it is necessary to keep the engine idling up by slowing down the engine, operating an air conditioner, or the like. For this reason, vehicle engines are equipped with idle-up devices.
When idle up is required, the idle up device is operated to keep the engine idle up.

By the way, in the case of the above-mentioned automatic transmission vehicle, when the vehicle is stopped and the idle up device for the air conditioner is operating, the shift lever is turned to N.
When shifting from range to D range or from N range to R range, the shift shock is large and extremely uncomfortable. Especially in the middle of the day,
If the automatic transmission was shifted after the vehicle was stopped by lightly pressing the brake pedal, there was a risk that the vehicle would suddenly lurch out and collide with the vehicle in front.

The purpose of this invention is to reduce the shift shock when shifting the automatic transmission in a vehicle equipped with an automatic transmission, and to improve drivability in a vehicle equipped with an automatic transmission. The object of the present invention is to provide a shock mitigation device.

In order to achieve the above object, this invention was developed to provide a switch mechanism that is linked to the push button of the shift lever that is operated when shifting the automatic transmission in a vehicle equipped with an automatic transmission equipped with an idle-up device that increases the idle of the engine. and a delay switching means for detecting the pressing operation of the push button by the switch mechanism and switching the idle up device to the idle up release side for a predetermined period of time.

Hereinafter, embodiments of this invention will be explained in detail based on the drawings.

FIG. 1 is a block diagram including a partial cross-sectional view showing a first embodiment of a shift shock relaxation device for an automatic transmission vehicle according to the present invention. In this figure, the battery 2 supplies power to each electric circuit of the vehicle.The negative pole of the battery 2 is grounded, and the positive pole of the battery 2 is connected to the fusible link 4, which opens and closes the ignition for operating the engine. It is grounded through a closed circuit consisting of an ignition switch 6 and an ignition circuit 8. The connection point between the ignition switch 6 and the ignition circuit 8 is connected to one electrode of a thermostat 14 provided in a blower or the like via a packaging fuse 10 and an air conditioner main switch 12. This thermostat 14 is for maintaining the room temperature of the vehicle within a certain set temperature range, and is equipped with a contact that closes when the room temperature exceeds the set temperature and opens when the room temperature falls below the set temperature. It is a device. The other electrode of this thermostat 14 is connected to an overheat prevention relay 16 that opens when the engine speed drops below a predetermined speed (for example, 1000 rpm) to prevent the engine from overheating, and an air conditioner Compressor 18 for Syona
The electromagnetic coil 22 of the electromagnetic clutch 20 is connected to the ground through a series circuit consisting of an electromagnetic coil 22 and an electromagnetic clutch 20 that transmits or disconnects engine driving force to the engine.

The other electrode of the thermostat 14 is connected to a switch mechanism 28 that is linked to a push button 26 of a shift lever 24 that is operated when shifting the automatic transmission, and a switch mechanism 28 that closes the push button 26 when the push button 26 is pressed. It is grounded through a series circuit consisting of a delay relay 32 as a delay switching means that detects when the engine is turned on and switches the idle-up solenoid valve 30 as an idle-up device to the idle-up release side for a predetermined period of time. There is. Idle up solenoid valve 3 as the idle up device
0 has one electrode grounded and the other electrode connected to the connection point between the thermostat 14 and the overheat prevention relay 16 via the relay contact 32S of the delay relay 32. When operating for a predetermined period of time, the idle-up solenoid valve 30 is switched to the idle-up release side.

Further, to explain in detail, the shift lever 24 is a push button 26 that is pressed when shifting the automatic transmission.
The push button 26 is slidably accommodated therein, and one end 26A of the push button 26 slightly protrudes from the shift lever to serve as an operating portion, and the other end 26B is supported by a spring 34 that biases the push button 26 toward the right side in the figure. and is connected to the shift lever 24. The other end 26B of the push button 26 of the shift lever 24 is connected to a movable contact 28A of the switch mechanism 28 via a rod 36, and the switch mechanism 28 pushes the push button 26 against the urging force of a spring 34. It is configured to be closed when pressed, and automatically opened when the push button 26 is returned by the biasing force of the spring 34. The push button 26 has a tapered portion 26 as shown in the figure.
C is provided, and when this push button 26 is pressed, the taper portion 26C engages the locking rod 38.
The tapered portion 38A of is slid and pressed,
The locking rod 38 is moved downward in the figure. Therefore, the lever 24 for selecting the shift position can be changed by pressing the push button 26.

The delay relay 32 as the delay switching means is
One electrode of the relay coil 32L is connected to the connection point of the thermostat 14 and the overheat prevention relay 16 via the switch mechanism 28, and the other electrode of the coil 32L is grounded, and a resistor is connected to both ends of the relay coil 32L. Delay circuit 32 consisting of a series circuit of 32R and capacitor 32C
It is constructed by connecting T. The delay circuit 32
T charges the capacitor 32C when the switch mechanism 28 is closed, supplies power from the capacitor 32C to the relay coil 32L when the switch mechanism 28 is opened, and excites the relay coil 32L for a predetermined time. It is something that continues to be done. Note that the overheat prevention relay 16 opens when, for example, the output voltage of a regulator (not shown) is detected and this voltage is lower than a predetermined value, or the number of rotations is detected and the number of rotations is smaller than a certain value. Furthermore, the fusible link 4 and the packaging fuse 10 are designed to melt and open the connection between the electric circuit and the battery 2 when the electric circuit is overloaded. be. Furthermore, when the idle up solenoid valve 30 is idle,
The thermostat 14 is activated when the temperature inside the vehicle exceeds the set temperature of the thermostat 14, and changes the engine rotation, for example.
It increases the speed from 700rpm to around 1100-1300rpm.

The operation of the shift shock relief device for an automatic transmission vehicle constructed as described above will be described below.

When the ignition switch 6 is closed, the current from the battery 2 flows through the fusible link 4, the ignition switch 6, and the ignition circuit 8, starting the engine. After starting the engine, the air conditioner main switch 12 is closed to operate the air conditioner device. When the temperature inside the vehicle exceeds the set temperature of the thermostat 14 during idling after starting the engine, the thermostat 14 is closed. When the thermostat 14 is closed, current flows from the battery 2 to the idle up solenoid valve 30, and the engine speed increases, for example.
The idle will be increased from 700rpm to around 1000rpm. When the engine is idled up, the overheat prevention relay is turned on, current flows through the electromagnetic coil 22 of the electromagnetic clutch 20, and engine driving force is transmitted to the compressor 18.

In this state, press button 2 of the shift lever 24.
6 is pushed against the biasing force of the spring 34, the back surface of the other end 26B of the push button 26 pushes the rod 36, and the push button 26
The movable contact 28A acts in conjunction with the switch mechanism 28 to close the switch 28.

Along with this, the current from the battery 2 flows to the delay relay 32, and the contact 32S moves from A to B.
Turn off the idle up solenoid valve 30. Therefore, the engine rotation returns to the idling state.
Furthermore, when the switch mechanism 28 is opened,
The relay coil 32L does not turn off immediately, but there is a certain time lag (when shifting from each position range to another range, for example from N range to D range, or from N range to R range, etc., the engine is started after shifting) The voltage stored in the capacitor 32C flows through the resistor 32R to the relay coil 32L during the period (time until the power is transmitted to the drive line), and the relay coil 32L is not turned off during the time lag period. There is.

In such a state, a shift is made from the N range to the D range or from the N range to the R range.
In other words, when the push button 26 is released after the shift starts,
Although the switch mechanism 28 is opened, the delay circuit of the delay relay 32 (resistor 32R, capacitor 3
2C) Since 32T acts, the delay relay 32 turns off after a certain time lag, and the contact 32S
returns to A from B. Accompanying this, current flows from the battery 2 to the idle up solenoid valve 30 to return to the idle up state. In this way, when operating the shift lever during idle up, idle up is released and the engine speed is suppressed to prevent shift shock, and idle up is activated when a predetermined time has elapsed after the shift is completed. This is how it was done. Note that when the idle-up solenoid valve 30 is turned off and the engine speed reaches a predetermined value (for example, 700 rpm), the overheat prevention relay 16 is opened and the electromagnetic coil 22 of the electromagnetic clutch 20 is de-energized. ,
It is designed to prevent the engine from idling rough, stalling or overheating.

According to the first embodiment, there is no need for a shift shock when shifting the automatic transmission, so there is an advantage that drivability is improved.

FIG. 2 is a configuration diagram including a partial cross-sectional view showing a second embodiment of the shift shock relaxation device for an automatic transmission vehicle according to the present invention. In the second embodiment, the same components as those in the first embodiment will be described with the same reference numerals. The difference between the second embodiment and the first embodiment is that the overheat prevention relay 16 is omitted and a delay relay 32 is used instead of this relay 16.
The other point is that the electromagnetic coil 22 of the electromagnetic clutch 20 is turned on and off by connecting the contact 32S' of the electromagnetic clutch 20, and the other configuration is the same as that of the first embodiment, so the explanation will be omitted.

According to the second embodiment configured in this way, the operation is almost the same as the first embodiment. The operation of the second embodiment differs from the operation of the first embodiment in that when the contacts 32S, 32S' of the delay relay 32 are opened, the energization of the electromagnetic coil 22 of the electromagnetic clutch 20 is immediately cut off. It is in.

According to the second embodiment, as in the first embodiment, the shift shock can be relaxed and drivability can be improved. Moreover, it can be applied even when no overheat prevention relay is provided.

FIG. 3 is a configuration diagram including a partial sectional view showing a third embodiment of the shift shock relaxation device for an automatic transmission vehicle according to the present invention. The third embodiment relates to a so-called manual air conditioner device, and when the air conditioner main switch 12 is closed regardless of the room temperature of the vehicle, the air conditioner device operates and the main switch 12 is closed. It is constructed so that when it is opened, the operation of the air conditioner device stops.

In the third embodiment, the same elements as those in the second embodiment are given the same reference numerals and their explanations will be omitted. The third embodiment differs from the second embodiment in that the thermostat 14 is omitted, and when the main switch 12 is closed, the idle up solenoid valve 30 is energized and the compressor 18 solenoid clutch 20 is closed. The structure is such that when the electromagnetic coil 22 is energized and the main switch 12 is opened, the idle-up electromagnetic valve 30 and the electromagnetic coil 22 are de-energized.

According to the third embodiment configured in this way, when the push button 26 is pressed to close the switch mechanism 28 and operate the delay relay 32, the relay contacts 32S and 32S' are switched to the B and B' sides. Instead, the energization of the idle-up solenoid valve 30 and the electromagnetic coil 22 of the electromagnetic clutch 20 is simultaneously interrupted. As a result,
The idle up is released, the engine speed decreases, and the shift shock is relaxed. In addition, the operation of the delay circuit 32T of the delay relay 32 and the operation of the shift lever 24 after the shift operation are the same as in the first embodiment, and will therefore be omitted.

According to the third embodiment, the shift shock during the shift operation is alleviated, and drivability is improved. Further, there is an advantage that the present invention can be applied even to a manual air conditioning device.

As described above, according to this invention, in a vehicle equipped with an automatic transmission, the idle up device is stopped when a shift operation is performed when the vehicle is stopped, so that the shift shock can be alleviated and drivability is improved. It has the effect of being able to aim for.

[Brief explanation of the drawing]

FIG. 1 is a block diagram including a partial sectional view showing a shift shock relaxation device for a vehicle with an automatic transmission according to the present invention; FIG. 2 is a block diagram including a partial sectional view showing a second embodiment of the same; FIG. FIG. 3 is a configuration diagram including a partial sectional view showing the third embodiment. 2...Battery battery, 6...Ignition switch, 12...Air conditioner main switch,
18... Compressor, 20... Electromagnetic clutch,
22... Electromagnetic coil, 24... Shift lever, 2
6...Push button, 28...Switch mechanism, 30...Idle up solenoid valve, 32...Delay relay, 3
2T...Delay circuit, 32L...Relay coil, 3
2S and 32S'...Relay contacts.

Claims (1)

[Scope of utility model registration request] In a vehicle with an automatic transmission equipped with an idle-up device that increases the idle of the engine, there is a switch mechanism that is linked to a push button on a shift lever that is operated when shifting the automatic transmission, and a switch mechanism that controls the pressing operation of the push button. 1. A shift shock mitigation device for a vehicle equipped with an automatic transmission, comprising a delay switching means for detecting and switching the idle up device to an idle up release side for a predetermined period of time.