JPS6246587Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a manual transmission shift-up timing display device for displaying the optimum gear stage of a transmission in an automobile equipped with a manual transmission.

(Prior art) When driving a car with a manual transmission, gear shifting operations in all driving patterns, such as slow acceleration, sudden acceleration, and slow/sudden deceleration, are all based on the driver's own judgment based on the driver's experience. It is being done. This increases the frequency of driving in non-optimal transmission gear positions, leading to an increase in engine fuel consumption.

(Problem that the invention aims to solve) Conventionally, in order to solve this problem, there were systems that detected the engine speed and displayed the shift timing, and systems that detected the vehicle speed, throttle opening, or intake negative pressure. There is a device that detects this and displays the shift timing, but in the former case, the indicator lamp may come on when the engine is running while the vehicle is stopped, and when shifting (to neutral), the engine speed may drop suddenly. In order to do so, the indicator lamp goes out, and an engine speed detection sensor must be added separately, which increases costs. , the detection is performed at all vehicle speeds, which not only complicates the signal device and operating mechanism that must be detected, but also makes it difficult to detect sudden acceleration when the user does not intend to perform a gear shift. The problem was that it called for more attention than necessary.

The present invention aims to improve these conventional drawbacks by making it possible to detect the accelerator throttle opening within a predetermined operating range of the accelerator, and to detect the gear position based on the gear position at the time of driving. To provide a manual transmission shift-up timing display device capable of displaying only the gear required during driving based on these detection signals and a vehicle speed detection signal.

(Means for Solving the Problems) According to the present invention, in a device for displaying the optimum gear position of a manual transmission of an automobile, the accelerator throttle opening is greater than the idle position and smaller than the full open position. an accelerator throttle opening sensing system that generates an on signal when the accelerator throttle position is within the range; a transmission gear position sensing system that generates an on signal corresponding to each transmission gear position including the set neutral position; The vehicle speed sensing system generates an ON signal when the vehicle speed is higher than the one corresponding to the vehicle speed, the ON signal corresponding to the set transmission gear position, and the vehicle speed sensing system generates an ON signal when the vehicle speed is higher than the vehicle speed corresponding to the transmission gear position. and a display device that displays a shift up when the ON signal issued from the accelerator throttle opening detection system is ANDed with the ON signal issued from the accelerator throttle opening sensing system when the accelerator opening is within a predetermined range. A manual transmission shift up timing display device is provided.

(Function) The present invention uses an ON signal corresponding to a set transmission gear position, an ON signal issued from the vehicle speed sensing system when a vehicle speed higher than the vehicle speed corresponding to this transmission gear position is detected, and an accelerator opening that is set to a predetermined value. Shift-up display is performed when the ON signal issued from the accelerator throttle opening detection system is ANDed with the ON signal issued from the accelerator throttle opening sensing system when it is within the range of .

(Example) Next, an example of the present invention will be described in detail using the drawings.

Figure 1 is a flowchart of the present invention, in which the engine is rotating and the gear position is A (for example, 1
speed), the vehicle speed is C (e.g. 20Km/hr) or higher, and the accelerator throttle opening is α% (α>0)
If it is larger than β% (β<fully open, α<β), the indicator lamp will be displayed. Also,
When the gear position is not A but B (for example, 2nd gear), the vehicle speed is D (for example, 60 km/hr) or more, and the accelerator throttle opening is between α and β, the indicator lamp turns ON.

FIG. 2 is a circuit diagram for concretely realizing the flowchart of FIG. 1. The accelerator throttle opening detection mechanism 16 detects when the accelerator throttle opening is α.
The switch 14 of the control circuit 14 turns ON when above, turns OFF when α is not reached, and when β exceeds ₀ .
Control circuit 14 that turns OFF and turns ON below β
The switch ₁₄₁ is connected to the vehicle speed sensing mechanism 1.
7 turns ON when the vehicle speed is C or higher, and turns OFF when the vehicle speed is lower than C.
The switch ₁₄₂ of the control circuit 14 and the vehicle speed are D.
It is connected to the switch ₁₄₃ of the control circuit 14, which is turned on when it is above D and turned off when it is less than D. The transmission gear position sensing mechanism 18 is set to the sensing state, so that it is only in gear position A.
The switch ₁₄₄ of the control circuit 14 is turned ON, and the switch ₁₄₅ of the control circuit 14 is connected only at gear position B. It should be noted that it is possible to increase the number of gears by adding a switch that turns on at a certain vehicle speed or higher and a corresponding gear position switch as appropriate. 14
₆ , 14 ₇ is a logic element, and the switch 14
₀ ... ₁₄₅ constitute the control circuit 14. 1
Reference numeral 5 denotes a display lamp, and this lamp 15 can not only be turned on but also display arrows and numbers.

FIG. 3 shows an example of the circuit configuration of the vehicle speed sensing mechanism 17, in which a switch 2 is connected to a magnet 1 that rotates in the same manner as the vehicle speed cable that detects the rotation of the gears in the transmission, and is repeatedly turned on and off by the rotation of the magnet 1. established,
The voltage change due to ON-OFF is used as a pulse signal,
It is transmitted to the control circuit 14.

Figure 4 shows the accelerator throttle opening sensing mechanism 16.
This is an example of the circuit configuration, with spring 3 on the car body side.
An accelerator pedal 4 is connected via a cable 5 to a lever 6 pivotally connected to an injection pump or a throttle lever of a carburetor. In addition, a switch 8 is fixed to the injection pump via a spring 7 and is set in a predetermined position so as to be operated ON-OFF within a certain range of the operating stroke of the lever 6 (above α% and within β%). The switch 8 is turned on when the lever 6 is rotated by the operation of the accelerator 4.
The -OFF signal is transmitted to the control circuit 14.

FIG. 5 shows an example of the circuit configuration of the transmission gear position sensing mechanism 18, in which the switch 1 is closed in response to the movement of the control rods 9 and 10 in the directions of the arrows.
1 and 12 are provided separately, and a neutral switch 13 is also provided to prevent the indicator lamp from turning off when in neutral.

The circuit of the above embodiment operates as described above with respect to the flowchart of FIG.
Therefore, the indicator lamp 15 does not light up during sudden deceleration, that is, when the engine brake is operated, when the vehicle is idling, and when the accelerator throttle opening exceeds β.

In the above description, the gear position display has been described as operating only in the direction of increasing vehicle speed, but the vehicle speed sensor 17 also displays the gear position in the direction of deceleration.
Alternatively, an ON-OFF switch that is turned ON at vehicle speed D or lower is provided, and the accelerator throttle opening sensing mechanism 1 is installed.
6 and the transmission gear position sensing mechanism 18 as shown in FIG. 2, a similar display can be made. Incidentally, if the indicator lamp 15 is attached to the speedometer, there is no need to provide a new attachment point, and the gear change is notified in relation to the vehicle speed, making it very easy to recognize.

(Effects of the invention) As explained in detail above, the present invention provides a shift-up timing display device that displays the optimum gear position of a manual transmission of an automobile, which turns ON when the accelerator throttle opening is greater than or equal to α and less than or equal to β. There is an accelerator throttle opening sensing mechanism, a vehicle speed sensing mechanism that turns ON at vehicle speeds higher than the vehicle speed corresponding to each gear above the lowest running speed, and a vehicle speed sensing mechanism that turns ON in response to the set transmission gear position and when in neutral. A transmission gear position sensing mechanism that also turns ON is provided, and an ON-OFF element of the vehicle speed sensing mechanism, a corresponding ON-OFF element of the transmission gear position sensing mechanism, and an ON-OFF element of the accelerator throttle opening sensing mechanism are assembled. It is connected to each logic element, and the display lamp is turned on when one of the logic elements is turned on. Unlike conventional devices, which have complicated detection and operation mechanisms, the system is designed to mainly use an ON-OFF switch. It has an extremely simple configuration. Additionally, unlike conventional display lamps that light up at all vehicle speeds and when the vehicle is stopped, the display lamps do not light up during sudden acceleration or sudden deceleration without the intention of shifting gears, so you need to be more careful than necessary. You will not be prompted to do so, and the light will not turn off even when shifting, and will only be displayed when necessary while driving.

[Brief explanation of the drawing]

Fig. 1 is a flowchart showing an embodiment of the present invention, Fig. 2 is a circuit diagram corresponding to the flowchart in Fig. 1, Fig. 3 is an explanatory diagram of the vehicle speed sensing mechanism, and Fig. 4 is an accelerator throttle. FIG. 5 is an explanatory diagram of the opening degree sensing mechanism. FIG. 5 is an explanatory diagram of the transmission gear position sensing mechanism. 1... Magnet, 2... Switch, 3... Spring, 4... Accelerator pedal, 5... Cable, 6
...Lever, 7...Spring, 8...Switch, 9,10...Control rod, 11,12,13...
Switch, 14...Control circuit, 15...Display lamp.

Claims (1)

[Claim for Utility Model Registration] A device for displaying the optimal gear position of a manual transmission of an automobile, which outputs an on signal when the accelerator throttle opening is within a range that is greater than the idle position and smaller than the fully open position. The accelerator throttle opening detection system generates an on-signal, and the transmission gear position sensing system generates an on-signal in response to the transmission gear position including the set neutral position, and the transmission gear position sensing system generates an on-signal, respectively, in response to the vehicle speed corresponding to each transmission gear position. A vehicle speed sensing system that generates a signal, an on signal that corresponds to the set transmission gear position, an on signal that is emitted from the vehicle speed sensing system when a vehicle speed higher than the vehicle speed corresponding to this transmission gear position is detected, and an accelerator opening. A manual transmission shift-up timing display device comprising: a display device that displays a shift-up when the signal is logically ANDed with an ON signal issued from an accelerator throttle opening sensing system when is within a predetermined range; .