JPS5937359A - Transmission gear controller for vehicle - Google Patents

Abstract

PURPOSE:To enable hand operation as well to be performed according to a driver's will, by a method wherein, in a device which effects automatic speed shifting control of a car according to a given pattern, a shift position is renewed according to an instruction signal. CONSTITUTION:During normal running in a position D of a range selector 5 after an automatic gear shifting switch 12 is closed, a control circuit 16 incorporating a microcomputer, performs calculation of a shift position based on a car speed, the load amount of an engine, and a gear shifting control pattern, and a lamp corresponding to a calculating shift position, among an AUTO lamp 14 and indicating lamps 13-1 to 13-4 is lighted ON, and solenoids 3-1-3-2 select the position of an automatic transmission gear 2 by means of the corresponding pattern. With an up-instruction switch 10 operated, a solenoid control signal, moving-up a shift position by one speed step, is outputted to light ON a MAN lamp 15 and light OFF the AUTO lamp 14, the automatic transmission gear 2 selects a shifting position, and the corresponding display lamp lights ON. Also the case of shifting-down, one speed step is moved down in the same manner by a down-instruction switch 11.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a speed change control device for a vehicle, particularly a speed change device that electrically and automatically performs a Mill III speed change in a vehicle such as an automobile based on a previously prepared speed change control pattern. This invention relates to a vehicle transmission control device that can receive shift up instructions and shift down instructions and change the shift position.

In general, in motor vehicles, a transmission control device equipped with an automatic transmission has a vehicle speed sensor that detects the running speed of the vehicle and an engine load sensor (for example, an engine load sensor) that detects the engine load as input parts. Step 11 to detect the valve opening of the intake system throttle valve
a range position sensor 1j that outputs a range position signal corresponding to a range position selected from among a plurality of range positions such as a (drive) range position and an R (reverse) range position; As a part, it has a plurality of shift 1 to solenoids, and depending on the drive pattern, the shift 1 to position [for example, 1st gear, 2nd gear, 3rd gear, 4th gear in the case of a 4-speed transmission (or O/D (Over DriVe)) ] is selected, and as a control unit, it receives detection signals from various sensors such as those mentioned above)-J and performs shift position calculations based on a shift control pattern prepared in advance, and It is equipped with a control circuit that outputs a shift solenoid control signal corresponding to the calculated shift position to the shift me solenoid, and the range selector selects the D range position, 2 range position (also referred to as S range position). When the vehicle is running, the shift control is automatically performed based on the shift control pattern described above.

-3- By the way, is the speed change control pattern recorded in -1- negative? ,
N M and vehicle speed (L engine output rotation speed) are uniquely set as parameters, but for the driver, l+
(Automatic control according to the speed change control pattern) 1
It is desirable to be able to perform 1) manual speed-up based on one's own will, while keeping 1 in mind.

Present invention 1. Considering the points mentioned in 1.L, manual speed change control according to the driver's will is also possible based on the automatic speed change control according to the speed change control pattern.1. The purpose is to provide a degree of freedom in the shift position selection by the driver. Therefore, the vehicle speed change control device of the present invention includes a vehicle speed sensor that detects the running speed of the vehicle, an engine load sensor that detects the engine load, a range position sensor that detects the range position, and a plurality of shift gears. ~An automatic transmission in which the shift position is selected according to a predetermined drive pattern of the solenoid, and the above-mentioned medium speed [! It receives the engine load amount signal from the engine load sensor 4J and the range position signal from the engine load sensor 4J and the range position signal from the engine load sensor 4J and the shift position based on a previously prepared shift control pattern. 4- A control circuit for performing a position calculation and outputting a shift solenoid control signal corresponding to the position of the shift 1 screened by the calculation to the shift 1 to the solenoid. (a) A shift up instruction switch and shift 1 to shift down instruction switches are provided, and (b) the control m1 circuit is provided with a shift up instruction signal from the shift 1 hair turn instruction switch or a shift down instruction switch to shift 1. Upon receiving the shift down instruction signal from the instruction switch, the shift 1 position update process is performed to update the shift 1 position calculated by the shift position calculation in accordance with the L instruction signal, and the update i
The present invention is characterized in that a shift solenoid control signal corresponding to the shift position after the 11th shift is output to the shift l-solenoid. The present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of an embodiment of a vehicle transmission control device according to the present invention.

In the figure, 1 is an engine, 2 is an automatic transmission including a torque converter, and two shift solenoids 3-1.
．． 3-2, the first speed corresponds to the predetermined drive pattern;
2nd speed, 3rd speed, and O/D shift positions are selected; 1 represents the output shaft of the automatic transmission 2 and transmits the driving force to the drive wheels (not shown); The driving force of the engine 1 is converted according to the shift position selected by the automatic transmission l1312, and further drives the drive wheels via the output shaft 4, etc. j'ru.

5 is a range selector, and 6 is a range position sensor that outputs a range position signal corresponding to the range position selected by the range selector 5 to the control circuit. For example, when the D range position is selected with a 2-pitch 1-digital signal, the digital information "11" and the lunge position (L
"01" when the range position (also called range position) is selected.
When the 2 range position (also called the S range position) is selected, the digital information is 10J, and when the other range positions are selected, the digital information is roOJ. 7 is output shaft 4
This is a vehicle speed sensor that detects the number of revolutions of the output shaft, that is, the running speed of the vehicle, and uses a photo-electrical conversion element or a magneto-electrical conversion element to send a detection signal with a frequency proportional to the number of rotations of the output shaft to a control circuit described later. Represents what is output. Reference numeral 8 does not indicate a 1L engine load sensor that detects the engine load amount and outputs a corresponding engine load amount signal to a control circuit to be described later. The engine load 1? The sensor 8 is, for example, a valve between valves 1 and 1 of a throttle sensor disposed in the intake system of the engine 1.
Consists of a throttle sensor that detects. Further, the engine load sensor 8 may be an intake pressure sensor →) that detects the engine intake air F1-.

Reference numeral 9 denotes a switch/display panel, which is installed at a position where it can be operated, for example, on the instrument panel.The panel 9 serves as a switch section, and has shift-me-up instruction switch 10 and shift-1 to shift-down instruction switches 11. It also has an automatic shift instruction switch 12, and a shift position indicator light 13-1 corresponding to the shift 1 position as a display section.
13-2.13-7-13.13-4. ! :, white v1 speed 11ill tal
l An automatic shift control indicator light (AUTO lamp) 14 that lights up when in 'E l' (AUTO mode);
manual shift control indicator light (MΔN ramp') 15 that lights up during full shift mode (MAN mode). The shift 1 to 1N indicator lights 13-1.3 to 2.13-3.13 to 4, the AUTO lamp 14, and the MAN lamp 15 are each controlled by the control circuit Is I-, which will be described later. Turns on and off in response to s
-ru.

164; t Microphone [1': 1 Represents a control circuit including an amplifier. The input section of the control circuit 16 is an input buffer 17.
-1 ',' Range position sensor 6, medium speed range switch 7, engine load sensor 8, shift 1 to up command switch 10, shift down command switch 11 via the switch 17-6
, is connected to the automatic shift instruction switch 12, while the output section is connected to the output buffer 18-1, 18-2, shift h 4Ct
F7 Indicator light' W Vh times m 19, gear shift &l 6
111 mod person show! Shift solenoid 3-1, 3-2, shift 4rl round indicator light 13- through I drive 11 circuit 20
1 to 13-4, shift control mode indicator light 14.1-
Connected to 8-5. In addition, the R of the micro combi coater mentioned in
The OM (Read Only Memory) stores in advance a shift control pattern (shift diagram) with engine load and vehicle speed as parameters, and the CP
tJ (Central processing
As described later, shift 1-position calculation based on the shift control pattern is performed in U unit ).

(The opening control circuit 16 is shown later in Figures 2 to 5)
The main functions are (1) shift position calculation, which calculates the shift position based on vehicle speed information, engine load information, and shift control pattern; (2) shift 1 - upon receiving the up instruction signal or the downshift instruction signal, a shift position update process of calculating a new shift position by upshifting or downshifting the current shift down calculated by the above shift position calculation by one speed, (3 ) A process of outputting a shift solenoid control signal corresponding to the shift position calculated by the shift position calculation or shift position update process to the shift solenoid 3-1.3-2, and (1) Switch-9-cum-display panel 9 C shift 1 to position indicator lights 13-1 to 13 corresponding to the switch input from and the shift position extracted by the above shift position calculation or shift 1 to position history new processing.
-4 and shift control mode indicator lights 14 and 15 lighting control J
There is a process that

Figures 2 to 5 schematically represent the calculations and processing of the control circuit 16. Figure 2 shows the main flowchart 1, and Figure 3 shows the main flowchart 1 during execution of the main processing in Figure 2. The timer interrupt process is executed at a predetermined period, for example, 10 IIls. FIG. 4 is a detailed flowchart of the range D (A) process that goes to the main 70-11-1 in FIG. 2, and FIG. Detailed flowcharts of output processing corresponding to the main flowchart of FIG. 2 are shown.

In FIG. 2, the control 11 circuit 16 starts processing when an engine mini-switch (not shown) is turned on, and first performs initialization in step 100.

Step 101 and step 102 are each number 10C
1s! Vehicle speed - 10 = input processing step and engine load input processing step that are repeatedly executed at the cycle of IJt, and the vehicle speed manual processing step 101 is based on the time interval of the vehicle speed signal from the vehicle speed sensor 7 that is not captured in the vehicle speed interrupt routine (not shown). Based on this calculation, the vehicle speed is calculated and the vehicle speed data is stored in RAM (Random Access Memory).
y) at a predetermined location. On the other hand, the engine load input processing step 102 is based on the engine load amount signal from the engine load sensor +) 8 (or throttle opening signal if the T engine square load sensor 8 is a throttle sensor, for example). is calculated and the engine load amount data is stored in another predetermined location of the RAM. Here, the above vehicle speed data and the above engine load amount data are set to 2 as the range position.
When range position or D range position is selected, range 2 processing step 104 or range D (A
) In processing step 105, the above-mentioned shift control pattern is used as a parameter for shift position calculation.

Steps 103 to 106 are performed depending on the determination results from the determination step groups 107 to 110. This is a group of steps that are executed when a range position) is selected. A range 1 processing step 103 performs processing to maintain the shift position at the first speed when the range position H is the lunge position, and to set the shift position flag to a flag value corresponding to the first speed.

The range 2 processing slap 104 is used for shifting between the 1st gear and the 2nd gear when the range position is the 2nd range position.
A shift position is calculated based on a predetermined shift control pattern, vehicle speed data, and carrot load data;
The shift position flag corresponds to the calculated shift position.
Processing is performed on the flag value. Range D (
A) Processing step 105 is performed when the range position is the D range position and the shift & III mode is the manual mode (
VAN mode), that is, A-to mode (Δ(J T
(O mode), performs shift position calculation based on the shift control pattern, vehicle speed data, and engine load data, and sets shift 1 to position flags to flag values corresponding to the calculated shift position. Perform processing. Range D (M)
Processing step 106 is a step executed when the range position is the D range position and the shift control mode is the MAN mode, and as described later in FIG. 4, the shift control mode shifts from the AUTO mode to the VAN mode. I: Directly select the range D when executing the previous program [1 gram]
(A) Shift used in processing step 105] - Shift the position by one speed; - Perform shift position update processing to shift up or down to a new shift position, and set the shift position flag to the shift after the processing Performs processing to set the flag value corresponding to the position. Further, in the determination step group 107 to 110, range 1 determination step 107, range 2 determination step 108, or thin 20 determination step 109
is a step of determining whether the range position signal from the range position sensor 6 corresponds to the lunge position, 2 range position, or D range position, and the VAN mode determination step 110 is the VAN mode determination step 110 set in the timer interrupt processing of FIG.
This step is to check the mode flag and determine whether or not the speed change control mode is MA-13-N dry.

Step 111 is an output processing step, and the output processing step 111, as described later in FIG. Based on the position and the shift control mode, the switch 111 controls the lighting of the display section of the display panel 9.

The timer interrupt processing routine in FIG. 3 consists of setting the MAN mode flag, UP mode flag, and DOWN mode flag, immediately I) t? This routine performs a power-on and a reset. Here, the VAN mode flag is used in the MAN mode determination step 110 in the main routine of FIG. 2, and is also used in the MAN mode determination step of FIG. 5, which will be described later. Also, the UP mode flag and D
The OWN mode flag number is U as described in Figure 4.
It is used in the P mode determination step and the DOWN mode determination step.

In the timer interrupt routine, step 2-14
- 00 is a MAN mode set step, and the MAN mode set step 200 is performed immediately after the shift up instruction switch 10 or the shift down instruction switch 11 is turned on when the D range position is selected as the range position. Executed when executing the first timer interrupt process. Further, step 201 and step 202 are UP mode set 1 to steps and DOWN mode reset step, respectively, and both steps 201 and 202 are
Both are executed when the first timer interrupt process is executed immediately after the shift 1 to up instruction switch 10 is turned on when the D range position is selected as the range position. Further, steps 203 and 204 are a DOWN mode let step and an UP mode reset step, respectively, and in both steps 203 and 204, the downshift instruction switch 11 is turned on when the D range position is selected as the range position. It is executed when executing the first timer interrupt process immediately after. Also, step 205 to step -15 = 207 (respectively VAN mode reset step, U
P mode I: L2 1-step, DOWN mode reset step, any step 205.206.
207 also applies when (1) a range position other than D range position 4 is selected as the range position, or (2) a D range position is selected as the l non-ge position and *speed 1. When the II+ mode is the MAN mode, the first [21 timer interrupt processing 1!] immediately after the automatic speed indication switch 12 is turned on. It is executed when executing El. The other steps 208 to 212 are a group of determination steps, step 208 is a range D determination step, and step 209 is M
AN mode determination step, step 210 is an automatic shift instruction switch turn 42 determination step, step 211 is a shift 1 to up instruction switch turn on determination step,
Step 2121 is a shift 1 down instruction switch turn A determination step.

The range I] (M) processing routine in Fig. 4 is executed when the range position is selected as the UD range (0 position) and the shift control mode is VAN mode.
− It is routine. This range D (M) processing routine is as follows: (1) When the shift control mode is the A LJ TO mode and the shift up instruction switch 10 or shift 1 to shift down instruction switch 11 is turned on, the first
When executing the range D (M) processing routine for the first time,
(2) When the shift-up instruction switch 10 or the shift-down instruction switch 11 is turned on when the shift control mode is VAN mode, the current shift position is The value of the shift position flag is updated to shift up or down by one continuous position. Regarding the shift up instruction, if the current shift position is O/D, O/D is maintained, and regarding the shift down instruction, the current shift position is the first shift position.
Of course, when the vehicle is in the first gear, the first gear is maintained, and the shift position update processing according to the present invention has a meaning that includes these steps.

In the range D (M) processing routine, step 30
Steps 0, 301, and 302 respectively set the shift position flag corresponding to the new shift position -17- which is shifted up by one station from the current shift position, and steps 303, 304, and 305 respectively set the current shift position. This is a step of setting a shift position flag corresponding to a new shift position which is shifted down by one position. In addition, step 306 and step 307 (after the shift position update processing as described above, the UP mode flag and DOW
This step is to reset the N mode flag. Further, steps 308 to 315 are a determination step group, and step 308 is an UP mode judgment swap step 30.
9 is a first series determination step, 310 is a second speed determination step, 311 is a third series determination step, 312 is a DOWN mode determination step, 313 is a second series determination step, 314
315 is a third consecutive determination step, and 315 is an O/D determination step.

The output processing 1!11 routine in FIG. 5 is a process for outputting a shift solenoid control signal corresponding to the shift position calculated by the shift position calculation or shift position calculation as described above, and for outputting a range position and a range position. Switch and display part 18 corresponding to the shift control mode and shift i position = Performs processing to control lighting of the display section of the panel 9.

In FIG. 5, steps 400 to 403 are solenoid output step groups, and the solenoid output step groups 400, 401 . ．． 402 and 403 are the range 1 processing step 103, the range 2 processing step 104, and
Range D (A) processing step 105, Range D (M)
The shift 1 to shift 1 calculated in the range processing step group consisting of the processing step 106 to the shift 1 to be shifted in position to the solenoid control signal are output. The shift solenoids 3-1, 3-2 driven by this shift solenoid control signal have a relationship from shift i to position as shown in the following table, for example. Another solenoid output step 404 is a step in which the shift 1 to solenoid outputs are turned off when none of the lunge position, 2 range position, and D range position is selected as the range position.

-19= Step 405
08I is a step group for controlling the lighting of the shift position indicator lamps 13-1 to 13-4, steps 409 to 411 are a step group for controlling the lighting of the shift control mode indicator 14. This is a step in which all of the indicator lights 13-1 to 13-4 and the shift control mode indicator lights 14, 15 are turned off.

-20- Other steps 413.414.415.416.417
are range 1.2, D determination step, MAN mode determination step, first series determination step, second series determination step, and third series determination step, respectively.

Hereinafter, the flowchart 1 of FIGS. 2 to 5 as described above will be explained.
The processing and operation of the vehicle transmission control device will be specifically explained based on the following.

During normal driving when the range of the range selector 5 is set to the D range position after the key switch is turned on, the control circuit 16 sets the shift control mode to AUTO at the initialization step 100 executed immediately after the key switch is turned on. mode, that is, a mode other than VAN mode, and only the route consisting of steps 208, 209, 211, and 212 is repeatedly executed in the timer interrupt processing, and no setting processing for the gear shift control mode is performed. , from step 101.1
02.107.108.109.110.105.11
A closed loop consisting of 1 is repeatedly executed at a period of several hundred IS culms. Therefore, in the normal driving section, the shift position is calculated based on the vehicle speed, engine load, and shift control pattern, and a shift solenoid control signal corresponding to the shift position determined by the Xi is output. At the same time, the AUTO lamp 14 is always on.
Of the shift position indicator lights 13-1<1 to 13-4, only the one corresponding to the shifted shift position is lit. The shift solenoid 3-1, 3-2 which received the shift solenoid control signal are driven in a drive pattern corresponding to the control signal, and the white motion speed 112 is set to the corresponding shift solenoid 3-1 to 3-2.
Position change position.

Shift during this normal driving! ~ When the up-shift instruction switch 10 is turned on, the determination result of the shift-up instruction switch turn-on determination step 211 is reversed to rYEsJ in the timer interrupt process, and the UP mode set step 2 is performed.
01, DOWN mode reset step 202 and VA
Since the N mode set step 203 is executed sequentially, the determination result of the VAN mode determination step 110 is rY.
Range D-2, which had been running until EsJ was reversed and lost.
2- (A) New range D instead of processing step 105
(M) Processing step 106 is now executed, and when the first range D (M) processing step 106 is executed, the immediately preceding range D (A> A shift position update process is performed in which the updated shift position (referred to as the current shift position) is shifted up by one speed. And the next output processing step 11
1, when the shift solenoid control signal corresponding to the updated shift position is output and the shift position display control signal corresponding to the position 1 to 1 is output, the control signal is sent to JL.
In order to turn on the AN lamp 15 and turn off the AUTO lamp 14, a corresponding speed change control all mode indicator lamp control sound is output. Therefore, the automatic transmission 2 selects the shift position after the shift update, and on the display section of the switch/display panel 9, the shift position indicator lamp and the MAN lamp 15 corresponding to the shift position after the shift update are lit. state. Incidentally, the shift position of the automatic transmission 2 is changed after the switching operation to the automatic transmission control mode is performed or the shift position of the automatic transmission 2 is changed.
It is clear from the flow chart 1 in the figure that the updated shift 1 position is maintained until a 23-up instruction or a (:l shift 1-down instruction) is issued.

After that, when the shift I/up instruction switch 1o is turned on again or the shift 1 down instruction switch 11 is turned on, as is clear from the flowchart in the figure, the shift position after the update described above is changed to the shift 1-position. The update process is performed, and the shift position is further shifted up by one speed, or the shift position is downshifted to the original shift position before the shift I/position change process, and the shift position is shifted up or down by one gear. The shift position indicator light corresponding to the shift position will come on. Furthermore, MAN
The lamp 15 remains lit.

On the other hand, when the automatic shift instruction switch 12 is turned on to return to the automatic shift control mode after the first manual operation that reaches 10, the MAN mode flag is reset in the timer interrupt process, so the N mode is determined to be M. The determination result -24- in step 110 is reversed to rNOJ, and the range D (A) processing step 105 is executed again, shift l-position calculation is performed based on the shift control pattern, and the next A process of outputting a shift solenoid control signal corresponding to the shift position calculated by the calculation in output processing step 111, and a shift control mode indicator light for turning on and off the ALITO lamp 14 and MAN lamp 15, respectively. A process of outputting a control signal is performed. From then on, range D
(A). -'), -j2a,. 5. Yo 0. □Engine.

□The gear shift IIJi[I is performed according to 1 and the display lighting control is performed in accordance with the selection of the shift I-position.

As explained above, the present invention can control the running speed of the skewers □゛.

A vehicle speed sensor to detect the engine load, an engine load sensor to detect the engine load amount, a range position sensor to detect the range position, and multiple shift solenoids □.

an automatic transmission in which a shift position is selected in accordance with a predetermined drive pattern; 1. Receiving a vehicle speed signal from the vehicle speed sensor, an engine load amount signal from the engine load sensor, and a range position signal from the range position sensor, the system calculates the shift position 1M based on a shift control pattern prepared in advance. In a vehicle shift I+9 control device comprising a control circuit that outputs a shift 1 solenoid control signal to the shift solenoid corresponding to the shift position calculated by the calculation, (a) a shift up instruction switch and a shift I-down control circuit; (b) When the III In circuit receives a shift-up instruction signal from the shift-up instruction switch or a shift-down instruction signal □ from the shift-down instruction switch marked with "-", the above-mentioned A shift 1 to position reception process is performed to update the shift position determined by the shift position execution according to the instruction signal, and a shift solenoid control signal corresponding to the shift position after the update process is applied to the shift solenoid. Therefore, according to the present invention, automatic shifting according to the shifting control pattern 1. Although it is based on II ml, it also enables manual gear shift control according to the driver's will, making it possible for the driver to
6 - It is possible to have discretion and freedom in selecting the shift position.

[Brief explanation of drawings]

FIG. 1 shows the configuration of an embodiment of the dual-purpose transmission control device according to the present invention, FIGS. 2 to 5 schematically show the calculation and processing of the control circuit 16, and FIG. 2 is the main flowchart thereof. , FIG. 3 is a timer interrupt process executed at a predetermined cycle, for example, 10IllS, during execution of the main process in FIG. 2, FIG. 4 is a detailed flowchart of the range D(A) process in the main flowchart in FIG. Each figure shows a detailed chart 70 of the output processing in the main flowchart of FIG. 1...Engine 2...Automatic transmission 3-1.3-2...Shift I/Solenoid 6...Range position sensor 7...Vehicle speed sensor 8...Engine load sensor 9... Switch and display panel -27- 10...Shift-up instruction switch 11...Shift-down instruction switch 12...Automatic shift instruction switch 16...Control circuit agent Patent attorney Foot) "T Tsutomu-28- No. 1 Figure 2 Start Nishimarai "Medium speed tot mechanism 102 Input father 1 ri 07 YES Yes) 3. 01oa /nn''/4v&,'';'2''' 104? No, (:9 し〉〉〉〉〉〉2No〉9
．． D Chijri? YES IO 9N. YES 05 Range °D (M) Range D (A) Kutanuki
1 ri

Claims (1)

[Claims] A vehicle speed sensor that detects the running speed of the vehicle, an engine load sensor that detects the amount of engine load, a range position sensor that detects range status, and a predetermined drive pattern of a plurality of shift solenoids. an automatic transmission in which a shift position is selected correspondingly, a vehicle speed signal from the vehicle speed sensor, an engine load amount signal from the engine load sensor, and F.
The controller receives the range position signal from the range position sensor and calculates a shift position based on a shift control pattern prepared in advance, and outputs a shift solenoid control signal corresponding to the shift position calculated by the calculation to the shift 1 solenoid. (a) A shift 1 to up instruction switch and a shift down instruction switch are provided, and (b) the control circuit includes: -1- from the shift 1 to up instruction switch; Shift 1 from the shift up instruction signal or the shift down instruction switch
- Upon receiving the down instruction signal, performs a shift position update process of updating the shift position calculated by the shift position calculation according to the instruction signal, and the update process]! l
Shift after I] - A variable*lllIn device for a vehicle, characterized in that a process is performed to output a shift 1 to solenoid control I signal corresponding to the position to the above-mentioned shift 1 to solenoid.