JPS6095245A - Remote manipulation device of transmission gear - Google Patents

Abstract

PURPOSE:To conduct shift operation gently by changing a throttle for exhaust from a cylinder device for shift operation at least by two stages in the course of shift operation and varying change timing according to the rev count of an engine. CONSTITUTION:When a change lever 4a of a command unit 4 is operated, a command signal is sent out to a control unit 3, thereby to switch one of solenoid valves 5, 6 to the exhaust state and to control one of variable throttle solenoid valves 7, 8, so that only during an initial little time, a quick exhaust is performed through a valve portion 7b having a large throttle, and then a valve portion 7a having a small throttle is used to perform slow exhaust. When the initial stage of shift operation is completed, the valve portion 7b is again used to conduct quick exhaust. If a valve of engine revolution number related velocity detected by a velocity sensor VS is low, in a short time, the valve portion 7b is switched to the valve portion 7b to complete shift operation more quickly than during high-speed running.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a remote control device for a transmission in a vehicle, and in particular, a synchronizing mechanism that enables the output of a cylinder device for shifting the transmission to be changed during a shift operation. This invention relates to an extremely rational remote control device that protects the engine and changes the timing of output change depending on the engine speed, etc., so that the shift operation is performed quickly at low speeds and slowly at high speeds.

Prior Art Conventionally, in a cylinder device in which a transmission for an engine disposed far from the driver's seat of a vehicle is shifted by commands from a command unit and a control device, shifting from a bi-tral position to one of the When shifting to a shift position, the air in the cylinder chamber on one side of the piston of the cylinder device is exhausted by a solenoid valve to obtain a predetermined output, but this solenoid valve does not have an exhaust restriction. Since there was no function to change it during the shift operation, the output of the cylinder device suddenly increased at the beginning of the shift operation, which caused excessive force to be applied to the synchronizer mechanism, causing gear squeal and damage to the synchronizer mechanism parts. It had the disadvantage of shortening its lifespan. In addition, in the conventional example, the exhaust throttle (air passage area) was always set to be small in order to maintain the synchronization mechanism, regardless of the speed related to the engine rotation speed, and the throttle was designed for high speeds where conditions are severe. Therefore, when the engine speed is low, K has the drawback that the shift time cannot be shortened even if the conditions are relaxed, and the shift time takes longer than necessary.

Purpose The present invention has been made in order to eliminate the drawbacks of the prior art described above, and its purpose is to provide a variable throttle solenoid on the exhaust side of a solenoid valve for supplying and exhausting a cylinder device for shifting of a transmission. By installing a valve and changing the restriction of the exhaust gas from the cylinder device during the shift operation, the rise of the output from the cylinder device is made gradual at the beginning of the shift operation. Prevents excessive force from being applied to the mechanism,
The objective is to improve its durability and prevent gear noise during shift operations.

Another purpose is to provide a speed sensor that detects the speed related to the engine rotation speed, and by connecting this to a control device, it is possible to change the timing at which the exhaust throttle from the cylinder device is changed. As a result, when the engine is running at high speeds, the time it takes to reduce the aperture is longer to make the shift operation more gradual, and when the engine is running at lower speeds, the time it takes to reduce the aperture is shorter and the shift operation is faster. The objective is to enable the shift operation to be carried out effortlessly and extremely rationally.

Summary In summary, the present invention includes a cylinder device disposed far from the driver's seat for shifting a transmission for a sales engine, a control device electrically controlling the cylinder device, and a manual and a command unit that is operated to send a command signal to the control device, at least a pair of solenoid valves that supply and exhaust air from an air tank to and from cylinder chambers on both sides of the piston of the cylinder device. and a variable throttle solenoid valve capable of changing the throttle to the exhaust gas from the cylinder device in at least two stages is provided on the exhaust side of the solenoid valve, and the variable throttle solenoid valve is connected to the control device. eD of the exhaust gas from the cylinder device during the shift operation.
A speed sensor configured to change the speed and detect a speed related to the engine speed is provided, and the speed sensor is connected to the control device to determine the timing of the change in the aperture according to the speed related to the engine speed. It is characterized by being configured so that it can be changed.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be explained below based on embodiments shown in the drawings. 1st
In the figure, a transmitter according to the present invention.

John's remote control device 1 includes a cylinder device 2, a control device 3, a command unit 4, a pair of electromagnetic valves 5, 6, a pair of variable throttle valves 7°8, and an engine 90. A speed sensor S is provided for detecting a speed related to the engine rotation speed, such as the rotation speed or the rotation speed of a countershaft (not shown) of the transmission 100.

The cylinder device 2 is for shifting a transmission 10 for an engine 9 disposed far from the driver's seat, and has a built-in double-acting piston (not shown), for example, an air tank 11 It is operated by air from the The control device ff3 is equipped with a computer, and based on command signals from the command unit 4,
The cylinder device 2 is electrically controlled.

The command unit 4 is disposed in the driver's seat, and is configured to send a command signal to the control device 3 by manually operating a change lever 4a.

The solenoid valves 5 and 6 supply and exhaust air from the air tank 11 to the cylinder chambers 2a and 2b on both sides of the piston of the cylinder device 2, respectively, and are connected to the air tank 11 by an air pipe 12, and are also controlled. It is electrically connected to the device 3 and is controlled by the control device.

The variable throttle solenoid valves 7 and 8 are separately attached to the exhaust sides of the solenoid valves 5 and 6 via hoses 13 and 14, and each variable throttle valve 7 and 8 has a large and small throttle valve part. 7b, 7a and 8b, 8a are provided on both sides of the electromagnetic coil portions 7c, 8c, respectively. In the present specification, regarding the restriction, a small air passage area is referred to as "small restriction", and a large air passage area is referred to as "large restriction". In each variable throttle valve 7, 8,
Either the large or small throttle valve part is used selectively. Each variable throttle solenoid valve 7.8 is connected to the control device 3.
The speed sensor VS is electrically connected to the control device %3 and is configured to change the throttle limit of the exhaust gas from the cylinder device 2 during a shift operation. It is configured such that the timing of the change can be changed by a speed related to the engine speed.

Function The present invention is constructed as described above, and its function will be explained below. Change lever 4 of command unit 4
When a is at the 2-toral position, air is supplied to the cylinder chambers 2a and 2b of the cylinder device 2, and the internal piston keeps the transmission 10 in the neutral position.

When the change lever 4a of the command unit 4 is operated to shift to one of the shift positions, a command signal to that effect is sent to the control device 3, and in response to this, the control device controls the solenoid valves 5 and 6. At the same time, one of the variable throttle solenoid valves 7 and 8 is switched to the exhaust state, and the throttle valve section with a large throttle, for example 7b, is first controlled for a short period of time.
Rapid exhaust is performed as shown by arrow B, and then the throttle valve portion 7a with a small throttle is switched to perform exhaust slowly as shown by arrow A. When the initial stage of the shift operation is completed, the large throttle valve portion 7b is again switched to perform rapid exhaust as shown by arrow B.

Next, the operation of the quick-dense sensor (S) will be explained with reference to FIG. 2. When the speed related to the engine speed is high, it is necessary to perform the shift operation slowly, so as shown in FIG. The throttle valve section 7b with a large throttle is used for a short time at the very beginning of the shift operation, for example, 0.175 seconds 11JJ, and then the throttle valve section 7a with a small throttle is used, and this state is maintained for a relatively long time. For example, it lasts for 0.4 seconds. As a result, the output pw of the cylinder device direct 2 rapidly rises to the predetermined output PW2 in 0.175 seconds, and then gradually rises, and the initial stage of the shift operation is slowed down after 0.4 seconds. It can be progressed accordingly. After that, the throttle valve section 7b with a large throttle is used again, and the output Pw is 0.4.
It takes 25 seconds to rise rapidly, and at time t1, the constant value PW! The shift operation is completed in about 1 second in total.

On the other hand, when the speed sensor VS K detects that the engine speed related speed is low, the control device 3 sets the throttle to a small throttle for 0.4 seconds in the case of low speed, as shown by the broken line in FIG. While the throttle valve part 7a is used, the throttle valve part 7a is switched for half of that time, for example, 0.2 seconds, and then immediately switched to the throttle valve part 7b. Therefore, cylinder device 2
The output Pw rises quickly, and the shift operation can be completed more quickly at high speeds.

Note that this effect is exactly the same for the variable throttle stain solenoid valve 8 on the solenoid valve 6 side, and no matter what gear position it is shifted to, the output P of the cylinder device 2 will change during the shift operation.
It is possible to change w, and the timing of the change can be arbitrarily changed according to the speed related to the engine rotational speed, so that the shift operation is always performed at a reasonable speed.

Effects Since the present invention is constructed and operates as described above, a variable throttle solenoid valve is provided on the exhaust side of the solenoid valve that supplies and exhausts the shift cylinder device of the transmission. , it is possible to change the throttle of the exhaust gas from the cylinder device, and it is possible to make the rise of the output gradual at the beginning of the shift operation by the cylinder device, so it is possible to prevent excessive force from being applied to the synchronizer mechanism. This has the effect of not only improving its durability but also preventing gear squeal during shift operations. In addition, we installed a speed sensor that detects the speed related to the engine rotation speed and connected it to the control device, making it possible to change the timing at which the exhaust throttle from the cylinder device is changed. When the engine is running at high speeds, it is possible to lengthen the time for reducing the aperture so that the shift operation is performed slowly, and when the engine is running at low speeds, it is possible to shorten the time for reducing the aperture and perform the shift operation quickly. The effect is that the shift operation is always performed effortlessly and extremely rationally.

[Brief explanation of the drawing]

FIG. 1 is an overall schematic diagram of a remote control device for a transmission according to the present invention, and FIG. 2 is a diagram showing changes in shift time and output in a cylinder device. 1 is a transmission remote control device, 2 is a cylinder device, 2a and 2b are cylinder chambers, 3 is a control device, 4 is a command unit, 5 and 6 are 'a solenoid valves 7°, 8 are variable throttle valves, 9 is an engine, 10 is a transmission, 11 is an air tank, and ■S is a speed sensor. Patent applicant Hino Automatic Industry Co., Ltd. Agent Patent attorney 1) Kazuo

Claims (1)

[Claims] A cylinder device for shifting an engine transmission located far from the driver's seat, a control device for electrically controlling the cylinder device, and a manually operated control device located for the driver's seat. A command unit configured to send a command signal to the device, wherein at least a pair of solenoid valves are provided for supplying and exhausting air from an air tank to cylinder chambers on both sides of the piston of the cylinder device; A variable throttle solenoid valve is provided on the exhaust side of the valve, and the variable throttle solenoid valve is capable of changing the throttle to the exhaust gas from the cylinder device in at least two stages, and the variable throttle solenoid valve is connected to the control device so that during a shift operation, the variable throttle solenoid valve is connected to the control device. A speed sensor configured to change the restriction of the exhaust gas from the cylinder device and detecting a speed related to the engine rotation speed is provided, and the speed sensor is connected to the control device to detect changes in the restriction. Transmission remote control device 0 characterized in that the timing is configured to be changed depending on the speed related to the engine rotation speed.