JP3066517B2 - Shift pattern continuously variable transmission control device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shift control device for use in an automatic transmission for an automobile, and more particularly to a shift pattern continuously variable shift control device in which a shift pattern is continuously variable.

[0002]

2. Description of the Related Art Conventionally, the following has been provided as a shift control device for an automatic transmission for a vehicle. That is,
A shift pattern corresponding to the throttle opening (engine load) and the vehicle speed is set in advance, and the shift speed is determined according to the detected throttle opening and the vehicle speed. The determined shift stage is realized by the control device outputting a predetermined control signal to the automatic transmission.

Here, the above-mentioned shift pattern is shown in FIG.
FIG. 4 is a shift-up characteristic diagram thereof, and FIG. 6 is a shift-down characteristic diagram thereof. That is, in FIG. 5, the vertical axis indicates the throttle opening, and the horizontal axis indicates the vehicle speed. When the driving state changes from the area of the number “1” to the area of the number “2” via the boundary indicated by the solid line. A shift-up operation from first gear to second gear is performed.

In this way, the numbers "3", "4",
The shift-up operation to each area of “5” is performed according to the change in the operation state. In FIG. 6, the vertical axis represents the throttle opening and the horizontal axis represents the vehicle speed. From the region indicated by the numeral “5”, the numeral “4” is applied through the boundary indicated by the solid line.
When the operating state changes to the range of the second gear, a downshift operation from the fifth gear to the fourth gear is performed.

In this way, the numbers "3", "2",
The shift-down operation to each region of "1" is performed according to a change in the operation state. Here, the boundaries shown by solid lines in FIGS. 5 and 6 indicate the boundaries of the normal pattern (economy pattern), and the shift-down,
When traveling by upshifting, a traveling state in which fuel efficiency is kept low is realized.

When a more sporty operation is desired, it is conceivable to shift down and up on the higher speed side than the normal pattern. A boundary indicated by a dotted line is provided on the higher speed side than the normal pattern boundary in FIG. There is provided a sporty pattern (power pattern) transmission system in which the vehicle travels by shifting down and up at this boundary.

The above-mentioned switching between the normal pattern and the sporty pattern may be performed by a manual switch or automatically by turning on an auto mode switch. In the auto mode, for example, under a predetermined condition such that the select lever is in the D range, when the accelerator pedal depression speed exceeds a set value (threshold), the normal pattern is automatically switched to the sporty pattern. However, the threshold of the accelerator depression speed for this switching is set according to the vehicle speed and the throttle opening.

For example, FIG. 7 is a diagram showing a threshold value of the accelerator depression speed. The vertical axis indicates the throttle opening, the horizontal axis indicates the vehicle speed, and the whole is divided into 16 regions. As shown by T11 to T44, a threshold value of the accelerator depression speed is set for each region. These threshold values T11 to T44 gradually increase toward higher vehicle speeds (for example, T11 <
T12 <T13 <T14), the setting is such that the lower the vehicle speed is, the easier it is to convert to a sporty pattern.

The thresholds T11 to T44 are set so as to gradually decrease toward a larger throttle opening (for example, T11>T21>T31> T41). The larger the throttle opening is, the easier it is to convert to a sporty pattern. Have been. Thus, when the accelerator pedal is depressed at a speed higher than the set value (T11 to T44), the normal pattern shifts to the sporty pattern, and the characteristic shown by the solid line in FIGS. 5 and 6 is changed to the shift pattern shown by the dotted line. Is done.

As a conventional example of changing the shift pattern, there is also provided one as shown in FIG. FIG. 8 shows shift-up characteristics from the third speed to the fourth speed.
The vertical axis indicates the throttle opening and the horizontal axis indicates the vehicle speed.
Two shift-up characteristic lines SC1 to SC5 are shown.

In this conventional example, one of these shift characteristics is selected according to the running state of the vehicle. The running state of the vehicle is recognized based on the throttle opening, the engine speed, the vehicle speed, the lateral acceleration, and the longitudinal acceleration. One of the shift-up characteristic lines is selected based on a predetermined calculation result, and the selected shift characteristic is selected. Is performed.

[0012]

However, such conventional means have the following problems. That is, in the means shown in FIG. 7, since a selection is made from a limited type of shift pattern, fine control cannot be performed.
The effect of the control is insufficient. Further, in the means shown in FIG. 8, it is necessary to optimally set the boundary of the switching determination, but this setting involves a number of experiments to determine the optimal conditions. For this reason, many development costs are required, and it is difficult to respond to design changes.

Further, in the means shown in FIG. 8, it is necessary to perform a considerable amount of calculation using the outputs of many sensors in order to determine the shift characteristic characteristics SC1 to SC5 suitable for the running state. Since it takes time, there is a possibility that the shift change operation is delayed with respect to the change in the running state. SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to provide a continuously variable shift pattern shift control device for an automatic transmission, which can accurately perform fine-grained shift change control. And

[0014]

According to the present invention, there is provided a continuously variable shift pattern shift control apparatus according to the present invention.
In a shift control device for switching a shift speed of an automatic transmission provided in an automobile, a shift speed detecting means for detecting a shift speed of the automatic transmission; a vehicle speed detecting means for detecting a traveling speed of the automobile; An engine load detecting means for detecting an engine load of the vehicle; and a gear changeover for issuing a command to change the gear of the automatic transmission based on information detected from the gear position detecting means, the vehicle speed detecting means and the engine load detecting means. A shift pattern setting means for setting a shift pattern in which a shift speed is made to correspond to a traveling speed and an engine load; a shift speed detecting device, the vehicle speed detecting device, and the engine; By comparing each information from the load detecting means with the shift pattern set by the shift pattern setting means, it is determined whether or not the gear position needs to be switched. A shift pattern setting means for outputting a required shift position change command signal, wherein the shift pattern setting means stores a shift pattern storage unit for storing a preset standard shift pattern; A driving characteristic detecting section for detecting a characteristic, and a shift for setting a shift pattern to be used by continuously changing the standard shift pattern based on the driving characteristic of the driver detected by the driving characteristic detecting section. It is configured to include a pattern setting unit, the operating characteristic detecting unit, the maximum performance of the engine
An engine performance usage calculator that calculates the usage of the engine performance indicated as a ratio of the usage performance of the engine to the tire, and acts on the tire for the maximum grip force of the tire
A tire performance usage calculator that calculates the degree of use of the tire performance indicated as the horizontal force to perform, and a sporty as the driving characteristic of the driver based on the calculation information from the engine performance usage calculator and the tire performance usage calculator. And a sporty degree calculating unit for calculating the degree of driving.

According to a second aspect of the present invention, there is provided a shift control device for continuously changing a shift pattern of an automatic transmission provided in an automobile. Speed detecting means for detecting the vehicle speed, vehicle speed detecting means for detecting the traveling speed of the vehicle,
An engine load detecting means for detecting an engine load of the vehicle; and a gear position for instructing a shift speed of the automatic transmission based on detection information from the gear position detecting means, the vehicle speed detecting means and the engine load detecting means. A shift pattern setting means for setting a shift pattern in which a shift speed is made to correspond to a traveling speed and an engine load; a shift speed detecting device; a vehicle speed detecting device; By comparing each information from the engine load detecting means with the shift pattern set by the shift pattern setting means, it is determined whether or not the gear change is necessary, and a required gear change command signal is output. The shift pattern setting means is configured to include a first shift pattern set in advance and a lower speed than the first shift pattern. A shift pattern storing unit that stores a second shift pattern that can select a driving characteristic, a driving characteristic detecting unit that detects a driving characteristic of a driver of the vehicle, and a driving characteristic of the driver detected by the driving characteristic detecting unit. Between the first shift pattern and the second shift pattern,
The third shift pattern is configured to include a shift pattern setting unit for setting a said operating characteristic detecting unit, engine
As the ratio of engine performance to maximum engine performance
An engine performance usage calculator for calculating the usage of the indicated engine performance, and a maximum grip force of the tire;
A tire performance usage calculator that calculates the usage of tire performance indicated as a horizontal force acting on the tire; and the driving of the driver based on calculation information from the engine performance usage calculator and the tire performance usage calculator. And a sporty degree calculating section for calculating a sporty driving degree as a characteristic.

[0016]

[0017]

[0018]

According to the shift control device of the present invention, the shift speed of the automatic transmission provided in the vehicle is controlled by switching. The shift pattern setting unit sets the shift pattern to be used by continuously changing the standard shift pattern stored in the shift pattern storage unit based on the driving characteristics of the driver detected by the driving characteristics detection unit. I do. At this time, in the driving characteristic detecting section, the engine performance usage calculating section calculates the maximum performance of the engine.
The usage level of the engine performance, which is indicated as a ratio of the usage performance of the engine to the tire, is calculated, and the tire performance usage calculation unit acts on the tire for the maximum grip force of the tire.
The degree of use of the tire performance indicated as the horizontal force is calculated, and the sporty degree calculating unit calculates the sporty driving degree as the driving characteristic of the driver from the calculation information from the engine performance usage calculating unit and the tire performance usage calculating unit. Ask for.
This sporty driving degree is used for the shift pattern setting in the shift pattern setting section.

The gear position switching command means compares the information from the gear position detecting means, the vehicle speed detecting means and the engine load detecting means with the shift pattern set by the shift pattern setting means, and compares the information with the shift pattern. It is determined whether or not a shift is necessary, and if a shift is required, a required shift stage switching command signal is output. In the continuously variable shift pattern shift control device according to the present invention described in claim 2,
The shift speed of the automatic transmission provided in the vehicle is controlled to be switched. At this time, first, in the shift pattern setting means, the driving characteristic detecting unit detects the driving characteristic of the driver of the vehicle and sets the shift pattern. The unit sets a third shift pattern between the first shift pattern and the second shift pattern stored in the shift pattern storage unit based on the driving characteristics of the driver detected by the driving characteristics detection unit. I do. At this time, in the driving characteristic detection unit, the engine performance usage calculation unit calculates the engine performance with respect to the maximum performance of the engine.
The usage level of the engine performance, which is indicated as the ratio of the usage performance of the tire, is calculated.
Shown as horizontal force acting on tire against grip force
The degree of use of the tire performance is calculated, and the sporty degree calculating section obtains the degree of sporty driving as the driving characteristic of the driver from the calculation information from the engine performance degree calculating section and the tire performance degree calculating section. This sporty driving degree is used for the shift pattern setting in the shift pattern setting section.

Thereafter, similarly to the above-described device, it is determined whether or not the gear position needs to be changed by the gear position change command means. , And outputs a required gear change command signal .

[0021]

[0022]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a functional block diagram schematically showing the entire structure of a continuously variable shift pattern shift control apparatus according to an embodiment of the present invention. FIG. FIG. 3 is a diagram showing an example of a shift pattern, and FIG. 4 is a flowchart showing the operation of the main part. Overall ConfigurationThe continuously variable shift pattern shift control device of the present embodiment is:
As shown in FIG. 1, in an automatic transmission 2 in which an output of an engine 1 of an automobile is transmitted through a torque converter (torque converter) 1A and transmitted to a drive wheel (not shown), a state of a speed change mechanism 2A of the automatic transmission 2 Is provided in order to control the shift speed. The gear position switching mechanism 2A is configured as, for example, a hydraulic mechanism having an electromagnetic switching valve. By electrically controlling the electromagnetic switching valve, the hydraulic mechanism operates to set the gear position to a predetermined state. It has become. Therefore, the shift control device of the present embodiment directly controls the operation of such an electromagnetic valve.

The gear shift control device 3 includes a gear position detecting means 4 for detecting the gear position of the automatic transmission 2, a vehicle speed detecting means 5 for detecting the running speed of the vehicle, and a throttle valve corresponding to the engine load of the vehicle. Speed changeover that issues a command to change the speed of the automatic transmission 2 based on information from each of the throttle opening degree detecting means (engine load detecting means) 6 for detecting the opening degree of the vehicle. Means 7
With

The speed changeover means 7 includes a shift pattern setting means 8 for setting a shift pattern corresponding to the speed to the traveling speed and the engine load, and a judgment as to whether or not the speed change is necessary. If necessary, a gear change command means (hereinafter, referred to as a gear change command means) for outputting a required gear change command signal.
9 (referred to as shift command means). The shift pattern setting means 8 includes a shift pattern storage unit 10 for storing a preset standard shift pattern, a driving characteristic detecting unit 11 for detecting a driving characteristic of the driver, and a standard shift pattern based on the driving characteristic of the driver. And a shift pattern setting section 12 for setting a shift pattern to be used.

The shift instructing means 9 includes a shift judging section 9A for judging whether or not a gear change is necessary based on the shift pattern set by the shift pattern setting section 12, and a shift judging section 9A. And a shift command section 9B for outputting a required gear change command signal when a shift is required. The shift pattern setting means 8 will be described. The shift pattern storage means 10 stores the shift speed and the throttle valve opening (corresponding to the engine load) in order to change the gear position. A preset standard shift pattern is stored, and the standard shift pattern includes the first
Shift pattern (normal pattern) 16A and the first
And a second shift pattern (sporty pattern) 16B which is set in advance as one having characteristics different from the shift pattern 16A. Of course, in the sporty pattern 16B, the shift-up timing is set to be late and the shift-down timing is set to be early, so that a relatively low speed stage is used compared to the case of the normal pattern 16A, and the high engine speed range is used. It is possible to drive while obtaining high output. The driving characteristic detection unit 11 detects a degree of the driver performing a so-called sporty driving (this is referred to as a sporty driving degree, abbreviated as a sporty degree). It is a driving that draws high output from the engine and runs at relatively high speed with high acceleration performance.The higher the sporty degree, the greater the use of the output performance of the engine, and in addition to acceleration and deceleration, Since the acceleration is easily increased, not only the engine but also the performance of the tires will be greatly utilized.

Therefore, as shown in FIGS. 1 and 2, the driving characteristic detecting section 11 includes an engine performance usage calculating section 13 for calculating the usage level of the engine performance and a usage level of the tire performance. the tire performance using calculating unit 14 that calculates, from the degree of use of use degree and tire performance of these engine performance, are not sportiness calculation section 15 Togaso seeking sporty degree. The driving characteristic detecting section 11 obtains a sporty degree at a set cycle.

Of these, the engine performance usage calculator 13
Then, the sporty degree “SPTE (i)” is calculated by the following equation (1).
Is calculated. SPTE (i) = _{[TE (i) -TE LR (i} ) ] / _{[TE max (i) -TE LR (} i) ] (1) where, TE (i), the operation at the time of the current This is the engine torque, which is calculated and output by the calculation unit 13A from the intake air charging efficiency “A / N” of the engine and the engine speed “Ne”.

Also, TE_max(i) is the current engine speed
Is the maximum engine torque at
The maximum engine torque "TE_max(i)
Is forced. Furthermore, TE_LR(i) is driving excluding acceleration resistance
This is the converted torque of the resistance on the engine crankshaft.
From various sensors and switches, the engine torque "TE
(i) ”, torque converter speed ratio“ e ”, torque converter
Data, gear position of automatic transmission 2, brake signal, lateral load
Speed "GY (i)", longitudinal acceleration "GX (i)" and vehicle speed
The information of “V” is obtained, and the running resistance is calculated by the calculation unit 13B.
Conversion torque "TE _LR(i) is calculated and output.

From the above equation (1), the ratio of the currently used running torque to the maximum torque that can be used due to the performance of the engine is detected. this is,
As shown by an explanation block 20A in FIG. 2, it corresponds to the ratio of the current vehicle acceleration to the maximum possible vehicle acceleration. This ratio, that is, the sporty degree “SP
TE (i) "indicates how much the driver has used the output of the engine, that is, how much sporty the vehicle is running.

On the other hand, the tire performance usage calculator 14 calculates
The sporty degree “SPG (i)” is calculated by the following equation (2). SPG (i) = ^{[{GX (i)} 2 +} {GY (i)} 2 ] ^1/2 / G _max ··· (2) where, GX (i) is the longitudinal acceleration, calculation unit 13C
Is calculated by differentiating the vehicle speed "V" with time, and is output as the longitudinal acceleration "GX (i)".

GY (i) is a lateral acceleration, which is calculated by the calculation unit 13D based on the vehicle speed "V" and the steering wheel angle "θH", and is output as the lateral acceleration "GY (i)". G _max is a limit acceleration for preventing the tire from slipping, and is given as a constant. The above equation (2) corresponds to the ratio of the horizontal force acting on the tire to the maximum grip force of the tire, as shown in an explanation block 20B in FIG. According to this ratio, that is, the sporty degree “SPG (i)”, it is determined how much the driver has used up the tire grip performance, that is, how much sporty running.
You can see the degree.

The sporty degree calculating section 15 includes a maximum value calculating section 15A, a filtering section 15B, and a vehicle speed correcting section 15C.
In each of these sections, the sportiness degree “SPTE (i)” related to the engine performance and the sportiness degree “SPG (i)” related to the tire performance are processed to determine the sportiness degree. That is, first, as shown in the following equation (3), the maximum value calculating unit 15A selects the larger one of the sporty degree “SPTE (i)” and the sporty degree “SPG (i)”.

SPC (i) = MAX {SPTE (i), SPG (i)} (3) Further, the filtering unit 15B performs filtering on the sporty degree “SPC (i)”. It has become. In this filtering, an average sporty degree “SPF (i)” obtained in this detection cycle is added to the information of the previous detection cycle in addition to the average sporty degree “SPF (i)”. i)), and can be obtained by the following equation (4).

SPF (i) = kr · SPC (i) + (1−kr) · SPC (i−1) (4) where kr is a coefficient in the range of 0 to 1, and kr is When the value is set to a value close to 1, the influence of the instantaneous sporty degree “SPC (i)” by the data of the current detection cycle becomes large,
When kr is set to a value close to 0, the effect of the sporty degree “SPC (i−1)” by the data of the previous detection cycle is increased. Therefore, by adjusting the value of kr, the sensitivity to the driver's request can be made appropriate.

The sporty degree "SPC (i)"
Then, filtering as shown in the map in the explanation block 20C in FIG.
(i) It is also conceivable to convert to "" and output. That is,
In a region where the sporty degree “SPC (i)” is low, the sporty degree “SP ′ (i)” is assumed to be approximately 0, and the sporty degree “SPC (i)”
In the region where PC (i) is high, the sporty degree "SP '(i)"
Is assumed to be approximately the maximum value 1 (= 100%), and "SP '(i)" is set so as to linearly increase with respect to "SPC (i)" in the region between them. Thereby, control stability is improved.

The vehicle speed correction unit 15C performs vehicle speed correction on the sporty degree "SPF (i)" calculated in this manner so as to match human senses. For example, in a low vehicle speed range, the sporty degree “SPF (i)” is relatively unlikely to be large, and the sporty degree of the driver is relatively unlikely to appear. On the other hand, in a high vehicle speed range, the sporty degree “SPF (i)” tends to be relatively large, and the sporty degree of the driver is easily emphasized. Therefore, for example, as shown in the following equation (5), the final sporty degree “SP (i)” is calculated using a function of the sporty degree “SPF (i)” and the vehicle speed V (i). The degree "SPF (i)" is corrected according to the vehicle speed,
They are trying to better detect the sportiness of the driver.

SP (i) = f ｛SPF (i), V (i)｝ (5) The sportiness degree “SP (i)” calculated by the driving characteristic detecting unit 11 in this manner. Are output to the shift pattern setting unit 12. The sporty degree “SP (i)” has a maximum value of 1 or 100 (%), for example.
It can be set so that the minimum value is 0. Shift pattern setting In the shift pattern setting unit 12, the sporty degree “S
In response to "P (i)", a driving characteristic corresponding shift pattern (hereinafter, referred to as a driving characteristic corresponding pattern) 16C is set as a third shift pattern between the normal pattern 16A and the sporty pattern 16B.

The setting of the operation characteristic corresponding pattern 16C is performed using an interpolation method. For example, if the current throttle opening is θ ₀ , the following can be performed. That is, for example, regarding the upshift, as shown in the description block 20D in FIG. 3A and FIG. 2, the point A (that is, the point A in the normal pattern 16A)
The vehicle speed V _A ) is the shift-up point, and the point B (ie, the vehicle speed V _B ) is the shift-up point in the sporty pattern 16B. On the other hand, the shift-up point C of the driving characteristic correspondence pattern 16C is obtained by interpolating between the points A and B in accordance with the sporty degree “SP (i)” input at this time. And

The vehicle speed (shift-up vehicle speed) V _C corresponding to the shift-up point _C is a vehicle speed V _A corresponding to the shift-up point A, a vehicle speed V _B corresponding to the shift-up point B, and the input sporty degree “ SP (i) "and can be expressed as follows. V _C = V _A + (V _B −V _A ) · SP (i) (6) Therefore, for example, “SP (i)” is 0.5 (or 50).
%), The shift-up point C is a middle point between the points A and B, and for example, “SP (i)” is 0.33 (or 33).
If%), as C ₁ point shown in Description Block 20D, it becomes a position moved from point A only the point B side 0.33, for example, "SP (i)" is 0.67. Or if 67%), as C ₂ points shown in Description Block 20D, the position moved from point A only the point B side 0.67.

The operation characteristic corresponding pattern 16C calculated in this way is as shown by a broken line in FIG. 3A as a result, and the sportiness degree "SP (i)" which is periodically inputted.
Changes, the driving characteristic corresponding pattern 16C is also continuously updated on the optimal line between the normal pattern 16A and the sporty pattern 16B.

The same applies to downshifting. That is, as shown in FIG. 3B, in the normal pattern 16A, the point A (that is, the vehicle speed V
_A ) is the shift down point, and the sporty pattern 16
In B, the point B (that is, the vehicle speed V _B ) becomes the downshift point. On the other hand, the shift-up point C (for example, C ₁ , C ₂ ) of the driving characteristic correspondence pattern 16C is between the point A and the point B, and the sportiness degree “SP (i)” input at this time is used.
Are obtained by interpolation according to

Then, the shift command means 9 determines whether or not the gear position needs to be switched based on the driving characteristic corresponding pattern 16C set in this way, and issues a required gear position switching command signal. It is designed to output. Operation and effects The continuously variable shift pattern shift control device of the present embodiment
With the above-described configuration, the shift control of the automatic transmission 2 through the shift control device 3 and the shift position switching mechanism 2A is performed, for example, according to the procedure shown in FIG.

That is, as shown in FIG.
In step 1, the output of various sensors is used to determine the gear position, the engine intake charging efficiency “A / N”, and the engine speed “N”.
e ", torque converter speed ratio" e ", steering wheel angle" θ
H, vehicle speed "V", brake signal, torque converter direct connection information, throttle valve opening, etc. are read.

Next, in step S2, the engine performance usage calculating section 13 of the driving characteristic detecting section 11 calculates the engine performance usage, and the sporty level "SPTE (i)".
Is output, and in step S3, the driving characteristic detecting unit 1
The tire performance usage calculator 14 calculates the tire performance usage, and outputs the sporty degree “SPG (i)”.
When calculating the sporty degree “SPG (i)”, first,
The calculation units 13C and 13D calculate the longitudinal acceleration GX (i) and the lateral acceleration "GY (i)", and the sporty degree "SPG (i)" is calculated based on these.

Subsequently, at step S4, the sporty degree calculating unit 15 of the driving characteristic detecting unit 11 calculates the sporty degree "SP (i)" from these sporty degrees "SPTE (i)" and "SPG (i)". Is calculated. First, the maximum value calculation unit 15A calculates two sporty degrees “SPTE”.
(i) "SPG (i)"
PC (i) is obtained, and then the filtering unit 15B
This SPC (i) contains information SPC up to the previous detection cycle.
SPF (i) is obtained in consideration of (i-1), and the vehicle speed correction unit 15C performs vehicle speed correction on the SPF (i) so as to match human senses.

When the sporty degree "SP (i)" is obtained in this way, in step S5, the shift pattern setting section 12 sets the normal pattern 16A and the sporty pattern 16 in correspondence with the sporty degree "SP (i)".
The driving characteristic corresponding pattern 16C is set as the third shift pattern during B. Then, in step S6, the shift determining unit 9A of the shift command unit 9 determines whether or not the gear position needs to be switched based on the driving characteristic corresponding pattern 16C set by the shift pattern setting unit 12 in this way.

Further, in step S7, when a shift is required by the shift judging section 9A, a required gear change command signal is output from the shift command section 9B of the shift command means 9. Then, the speed change mechanism 2A operates according to the speed change command signal, and the change of the speed of the automatic transmission 2 is controlled.

With the above operation, the following effects can be obtained. That is, when sporty driving is performed, the degree of request for engine or tire performance increases, but the shift line is changed to a higher speed side, and the shift control of the sporty pattern is automatically performed. Also,
When mild driving is performed, the degree of demand for engine or tire performance is reduced, and accordingly, the shift line is changed to a lower speed side, and shift control in the economy pattern is automatically performed.

Furthermore, the degree of sportiness and the degree of mildness vary from person to person, and it is desirable that the speed change control corresponding to the individual preference be performed in a desired state between the sporty pattern and the economy pattern. In the example, since the shift pattern to be changed can be continuously adjusted, it is possible to finely correspond to individuality.

The shift pattern to be set in the system may be of two types, a sporty pattern and an economy pattern. There are few factors to be set by confirming through experiments or the like, and the system can be constructed inexpensively and easily. it can. In addition, the calculation required for calculating the shift pattern 16C corresponding to the driving characteristics requires a small number of calculation steps and each calculation step is easy, and quick shift control is performed without delaying the reaction due to the calculation time.

In the present embodiment, the first and second shift patterns are used as the reference shift patterns, and the driving characteristic-corresponding shift pattern 16C is calculated by linear interpolation.
Is set, but it may be configured to perform this by calculation of secondary interpolation using three reference shift patterns. In addition, only one reference shift pattern is provided, and the sportiness degree “SP (i)
It is conceivable that the shift pattern 16C corresponding to the driving characteristics is set so as to perform the correction corresponding to "."

Further, it is also conceivable to employ a system as in the present embodiment between the patterns while finely setting various patterns by using three or more shift patterns.

[0053]

As described above in detail, according to the shift pattern continuously variable shift control device of the present invention, the shift control device for switching the shift speed of the automatic transmission provided in the automobile is controlled. A speed detecting means for detecting a speed of the automatic transmission, a vehicle speed detecting means for detecting a traveling speed of the vehicle, an engine load detecting means for detecting an engine load of the vehicle, and the speed detecting means Gear shift means for issuing a gear shift command for the automatic transmission based on the detection information from the vehicle speed detecting means and the engine load detecting means. A shift pattern setting means for setting a shift pattern corresponding to a gear position, and information from the gear position detecting means, the vehicle speed detecting means and the engine load detecting means. In comparison with the shift pattern set by the shift pattern setting means, a determination is made as to whether or not a gear change is necessary, and a gear change command means for outputting a required gear change command signal is provided. The shift pattern setting unit is configured to store a shift pattern storage unit that stores a preset standard shift pattern, a driving characteristic detection unit that detects a driver's driving characteristic, and based on the operating characteristics of the detected driver by continuously changed in parts, is configured to include a shift pattern setting unit for setting a shift pattern to be used, the operating characteristic detecting unit, the maximum engine sex
An engine performance usage calculator that calculates the usage of the engine performance, which is indicated as a ratio of the usage performance of the engine to the performance, and an operation for the tire for the maximum grip force of the tire.
A tire performance usage calculator that calculates the usage of the tire performance indicated as the horizontal force to be used, and the driving characteristics of the driver from the calculation information from the engine performance usage calculator and the tire performance usage calculator. The following effects and advantages can be obtained by being constituted by the sporty degree calculating section for calculating the sporty driving degree. (1) The driving feeling of a vehicle equipped with an automatic transmission to automatically set an optimal shift pattern corresponding to the driving characteristics according to the driver while accurately grasping the driving characteristics of the driver. Can be greatly improved. (2) In addition, since the set shift pattern can be continuously adjusted, it is possible to correspond to individuality in a fine manner. (3) Since only a few shift patterns need to be set in advance, there are few factors to be checked and set by experiments or the like, so that the system can be easily and inexpensively constructed.

According to a second aspect of the present invention, there is provided a shift control device for controlling a shift speed of an automatic transmission provided in an automobile. Gear position detecting means for detecting a gear position, vehicle speed detecting means for detecting a traveling speed of the vehicle, engine load detecting means for detecting an engine load of the vehicle, the gear position detecting means, the vehicle speed detecting means, A speed changeover means for instructing a shift speed of the automatic transmission based on the detection information from the engine load detection means, wherein the speed changeover means makes the shift speed correspond to the traveling speed and the engine load. A shift pattern setting means for setting a shift pattern, and information from the gear position detecting means, the vehicle speed detecting means and the engine load detecting means. Comparing the shift pattern set by the setting means with a gear change command means for judging whether gear change is necessary and outputting a required gear change command signal; The shift pattern setting means includes a first shift pattern set in advance and the first shift pattern.
A shift pattern storage unit that stores a second shift pattern that can select a lower gear than the shift pattern; a driving characteristic detecting unit that detects driving characteristics of a driver of the vehicle; A shift pattern setting unit that sets a third shift pattern is provided between the first shift pattern and the second shift pattern based on the driving characteristics of the driver. , D
The ratio of engine performance to engine maximum performance and
And engine performance usage calculation unit for calculating a use degree of engine performance exhibited by, against the maximum tire grip force
A tire performance usage calculator that calculates the usage level of the tire performance indicated as the horizontal force acting on the tire, and the driver performance of the driver from the calculation information from the engine performance usage calculator and the tire performance usage calculator. The following effects or advantages can be obtained by being constituted by the sporty degree calculating section for obtaining the sporty driving degree as the driving characteristic. (1) In order to accurately and accurately grasp the driving characteristics of a driver and automatically and surely set an optimum shift pattern corresponding to the driving characteristics of the driver, a vehicle equipped with an automatic transmission is required. The driving feeling can be greatly improved. For example, if the first shift pattern is set to a so-called normal pattern and the second shift pattern is set to a so-called sporty pattern, when a sporty operation is performed, the shift line is changed accordingly, and the shift control closer to the sporty pattern is performed. Is performed automatically, and conversely,
When the vehicle is driven mildly, the shift line is changed accordingly, and the shift control closer to the economy pattern can be automatically performed. (2) In addition, since the set shift pattern can be continuously adjusted, it is possible to correspond to individuality in a fine manner. (3) Since only a small number of shift patterns need to be set in advance, there are few factors to be set by confirming through experiments or the like, so that the system can be easily and inexpensively constructed.

[0055]

[0056]

[Brief description of the drawings]

FIG. 1 is a functional block diagram schematically showing an entire configuration of a continuously variable shift pattern shift control device as one embodiment of the present invention.

FIG. 2 is a functional block diagram showing a main part of a continuously variable shift pattern shift control device as one embodiment of the present invention.

FIG. 3 is a diagram showing an example of a shift pattern in the continuously variable shift pattern shift control device as one embodiment of the present invention, wherein FIG.
Indicates a downshift.

FIG. 4 is a flowchart showing an operation of a main part of the continuously variable shift pattern shift control device as one embodiment of the present invention.

FIG. 5 is a graph showing shift-up characteristics of a shift control device in a conventional automatic transmission.

FIG. 6 is a graph showing shift-down characteristics of a shift control device in a conventional automatic transmission.

FIG. 7 is a schematic diagram for explaining a concept of automatic switching control in an automatic mode in a conventional shift control device for an automatic transmission.

FIG. 8 is a graph showing shift characteristics of another shift control device in the conventional automatic transmission.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 engine 1A torque converter (torque converter) 2 automatic transmission 2A gear change mechanism 3 shift control device (continuously variable shift pattern shift control device) 4 shift speed detection means 5 vehicle speed detection means 6 throttle opening detection means (engine load detection Means) 7 shift speed switching means 8 shift pattern setting means 9 shift speed switching command means (shift command means) 9A shift determination section 9B shift command section 10 shift pattern storage section 11 operation characteristic detection section 12 shift pattern setting section 13 engine performance use Degree calculation part 13A, 13B, 13C, 13D calculation part 14 Tire performance usage calculation part 15 Sporty degree calculation part 15A Maximum value calculation part 15B Filtering part 15c Vehicle speed correction part 16A First shift pattern (normal pattern) 16B Second Shift pattern (sporty pad Turn) 16C Third shift pattern (driving pattern corresponding to driving characteristic, abbreviated as driving characteristic corresponding pattern) 20A, 20B, 20C, 20D Explanation block

──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. ⁷ Identification code FI F16H 59:74 (72) Inventor Shinji Watanabe 840 Chiyodacho, Himeji City, Hyogo Prefecture Mitsubishi Electric Corporation Himeji Works (56) References JP-A-63-162344 (JP, A) JP-A-63-270959 (JP, A) JP-A-4-165159 (JP, A) JP-A-2-31942 (JP, A) JP-A-3-79859 (JP, A) JP-A-3-255255 (JP, A) JP-A-5-248532 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) F16H 59/00-61 / 12 F16H 61/16-61/24 F16H 63/40-63/48

Claims (2)

(57) [Claims] 1. A shift control device for switching a shift speed of an automatic transmission provided in an automobile, a shift speed detecting means for detecting a shift speed of the automatic transmission, and a vehicle speed for detecting a traveling speed of the automobile. Detecting means; an engine load detecting means for detecting an engine load of the vehicle; a speed change command of the automatic transmission based on detection information from the shift speed detecting means, the vehicle speed detecting means and the engine load detecting means. Shift speed setting means for setting a shift pattern in which a shift speed is made to correspond to a traveling speed and an engine load; a shift speed detecting means; It is necessary to compare the information from the detecting means and the engine load detecting means with the shift pattern set by the shift pattern setting means to change the gear position. Shift speed change command means for judging whether or not there is a gear shift command signal for outputting a required shift speed change command signal, wherein the shift pattern setting means stores a preset standard shift pattern. A driving characteristic detecting section for detecting a driving characteristic of the driver; and a standard shift pattern used by continuously changing the standard shift pattern based on the driving characteristic of the driver detected by the driving characteristic detecting section. And a shift pattern setting unit for setting a power shift pattern, wherein the operating characteristic detecting unit is configured to determine a ratio of the use performance of the engine to the maximum performance of the engine.
An engine performance usage calculation unit that calculates the usage level of the engine performance indicated as, and the horizontal acting on the tire with respect to the maximum grip force of the tire
A tire performance usage calculating unit for calculating a usage level of tire performance indicated as a force ; and a sporty driving degree as a driving characteristic of the driver from calculation information from the engine performance usage calculating unit and the tire performance usage calculating unit. And a sporty degree calculating unit for calculating the shift pattern. 2. A shift control device for controlling a shift speed of an automatic transmission provided in an automobile, a shift speed detecting means for detecting a shift speed of the automatic transmission, and a vehicle speed for detecting a traveling speed of the automobile. Detecting means; an engine load detecting means for detecting an engine load of the vehicle; a speed change command of the automatic transmission based on detection information from the shift speed detecting means, the vehicle speed detecting means and the engine load detecting means. Shift speed setting means for setting a shift pattern in which a shift speed is made to correspond to a traveling speed and an engine load; a shift speed detecting means; It is necessary to compare the information from the detecting means and the engine load detecting means with the shift pattern set by the shift pattern setting means to change the gear position. Speed change command means for judging whether or not there is a gear change command signal for outputting a required gear change command signal, wherein the shift pattern setting means comprises a first shift pattern set in advance and the first shift A shift pattern storage unit that stores a second shift pattern that can select a lower gear than a pattern, a driving characteristic detection unit that detects driving characteristics of a driver of the vehicle, and a driving detected by the driving characteristic detection unit A shift pattern setting unit that sets a third shift pattern between the first shift pattern and the second shift pattern based on the driving characteristics of the driver. , Ratio of engine performance to maximum engine performance
An engine performance usage calculation unit that calculates the usage level of the engine performance indicated as, and the horizontal acting on the tire with respect to the maximum grip force of the tire
A tire performance usage calculating unit for calculating a usage level of tire performance indicated as a force ; and a sporty driving degree as a driving characteristic of the driver from calculation information from the engine performance usage calculating unit and the tire performance usage calculating unit. And a sporty degree calculating unit for calculating the shift pattern.