KR20130024341A - System and method for controlling mode of transmission - Google Patents

System and method for controlling mode of transmission Download PDF

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Publication number
KR20130024341A
KR20130024341A KR1020110087739A KR20110087739A KR20130024341A KR 20130024341 A KR20130024341 A KR 20130024341A KR 1020110087739 A KR1020110087739 A KR 1020110087739A KR 20110087739 A KR20110087739 A KR 20110087739A KR 20130024341 A KR20130024341 A KR 20130024341A
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KR
South Korea
Prior art keywords
air pressure
shift
vehicle
change amount
shift mode
Prior art date
Application number
KR1020110087739A
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Korean (ko)
Inventor
최훈
Original Assignee
주식회사 현대케피코
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Publication date
Application filed by 주식회사 현대케피코 filed Critical 주식회사 현대케피코
Priority to KR1020110087739A priority Critical patent/KR20130024341A/en
Publication of KR20130024341A publication Critical patent/KR20130024341A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
    • B60C23/02—Signalling devices actuated by tyre pressure
    • B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
    • B60C23/0408—Signalling devices actuated by tyre pressure mounted on the wheel or tyre transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
    • B60C23/0474—Measurement control, e.g. setting measurement rate or calibrating of sensors; Further processing of measured values, e.g. filtering, compensating or slope monitoring
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/52—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H59/00—Control inputs to control units of change-speed-, or reversing-gearings for conveying rotary motion
    • F16H59/50—Inputs being a function of the status of the machine, e.g. position of doors or safety belts
    • F16H59/52—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus
    • F16H2059/525—Inputs being a function of the status of the machine, e.g. position of doors or safety belts dependent on the weight of the machine, e.g. change in weight resulting from passengers boarding a bus the machine undergoing additional towing load, e.g. by towing a trailer

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Transmission Device (AREA)

Abstract

The shift mode control system calculates an air pressure change amount of each of the plurality of tires by comparing the air pressure measurement value of each of the plurality of tires constituting the vehicle with the air pressure reference value of each of the plurality of tires, and changes the air pressure change amount of each of the plurality of tires. Calculate the load increase and decrease amount for the vehicle, and transmits the shift mode information for the shift mode to operate the transmission according to the shift mode corresponding to the load increase and decrease amount.

Description

SYSTEM AND METHOD FOR CONTROLLING MODE OF TRANSMISSION}

The present invention relates to a shift mode control system and method. More specifically, the present invention relates to a shift mode control system and method for controlling a shift mode of a transmission in accordance with a load change of a vehicle calculated from the air pressure of a tire.

In a state where the load of the vehicle is increased, more torque is required while driving, and more pressure is applied to the brake even when decelerating. To compensate for this, it is necessary to apply different shift patterns according to the load change of the vehicle.

An object of the present invention is to provide a shift mode control system and method capable of controlling a shift mode according to a load change of a vehicle.

The shift mode control method according to an aspect of the present invention comprises the steps of: calculating an air pressure change amount of each of the plurality of tires by comparing the air pressure measurement value of each of the plurality of tires constituting the vehicle with an air pressure reference value of each of the plurality of tires; Calculating a load increase / decrease amount for the vehicle using an air pressure change amount of each of the plurality of tires, determining a shift mode corresponding to the load increase / decrease amount, and a shift mode for the shift mode to operate the transmission according to the shift mode Transmitting the information.

In this case, the step of determining the shift mode determines a shift pattern corresponding to a load increase / decrease amount among a plurality of shift patterns having different shift timings based on the reference shift pattern as the shift mode for the vehicle.

In addition, the shift pattern is shifted at a speed increased by a ratio corresponding to a load increase / decrease amount than the speed at which the shift is performed according to the reference shift pattern.

At this time, the step of calculating the load increase / decrease may calculate the load increase / decrease amount when the air pressure change amount of each of the plurality of tires exceeds a set value.

The calculating of the load increase / decrease may include calculating a load change amount for each of the plurality of tires using the air pressure change amount of each of the plurality of tires, and using the load change amount for each of the plurality of tires. Calculating a weight loss.

In this case, the determining of the shift mode may include updating the cumulative change amount by adding the previously stored cumulative change amount to the load of the vehicle and the load increase / decrease amount, and determining the shift mode corresponding to the updated cumulative change amount.

In addition, the cumulative change amount stored in advance represents a cumulative change amount with respect to the load of the vehicle.

A shift mode control system according to a feature of the present invention includes an air pressure calculator, a load calculator, and a shift mode controller. The air pressure calculating unit calculates the amount of change in the air pressure of the tire by comparing the air pressure measurement value of the tire constituting the vehicle with the air pressure reference value. The load calculation unit calculates the load change amount for the tire using the air pressure change amount, and calculates the load increase / decrease amount for the vehicle using the load change amount. The shift mode controller determines a shift pattern corresponding to a load increase / decrease amount among a plurality of shift patterns having different shift points based on the reference shift pattern as a shift mode for the vehicle.

At this time, the speed of the vehicle to determine whether the vehicle is in a stopped state, and further comprises a state diagnosis unit for determining whether the driver boarded in the driver's seat of the vehicle.

The air pressure calculating unit calculates the air pressure change amount when the vehicle is in a stopped state and the driver rides in the driver's seat according to the determination of the state diagnosis unit.

At this time, the air pressure calculation unit determines whether the air pressure change amount exceeds the set value, and the load calculation unit calculates the load change amount when the air pressure change amount exceeds the set value according to the judgment of the air pressure calculation unit.

At this time, the shift pattern is shifted at a speed increased by a ratio corresponding to the load increase / decrease amount than the speed at which the shift is performed according to the reference shift pattern.

According to a feature of the invention, it is possible to detect the change in load of the vehicle by measuring the air pressure of the tire constituting the vehicle, and to control the shift mode of the transmission in response to the change in load of the vehicle.

1 is a view showing the function of the shift mode control system according to an embodiment of the present invention.
2 is a view showing the configuration of a shift mode control system according to an embodiment of the present invention.
3 is a diagram illustrating a shift mode control method according to an exemplary embodiment of the present invention.
4 is a diagram illustrating another reference shift pattern in an embodiment of the present invention.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings. Here, the repeated description, the notification function that may unnecessarily obscure the gist of the present invention, and the detailed description of the configuration will be omitted. Embodiments of the present invention are provided to more completely explain the present invention to those skilled in the art. Accordingly, the shape and size of elements in the drawings may be exaggerated for clarity.

Hereinafter, a shift mode control system and method according to an exemplary embodiment of the present invention will be described with reference to the accompanying drawings.

First, a function of a shift mode control system according to an exemplary embodiment of the present invention will be described with reference to FIG. 1.

1 is a view showing the function of the shift mode control system according to an embodiment of the present invention.

As shown in FIG. 1, the shift mode control system 100 according to an exemplary embodiment of the present invention interworks with a tire pressure monitoring system (hereinafter, also referred to as 'TPMS') 10 mounted in a vehicle. It detects the change in the load of the vehicle from the air pressure of the tire, and determines the shift mode according to the detected change in the load of the vehicle to control the transmission system (20).

The TPMS 10 measures the air pressure for the tire installed in the vehicle and transmits the measurement data to the shift mode control system 100.

The transmission system 20 includes a transmission control unit (hereinafter also referred to as 'TCU') 21 and a transmission 22.

The TCU 21 controls the transmission 22 such that the transmission 22 operates in the shift mode determined in the shift mode control system 100.

Next, a configuration of a shift mode control system according to an exemplary embodiment of the present invention will be described with reference to FIG. 2.

2 is a view showing the configuration of a shift mode control system according to an embodiment of the present invention.

As shown in FIG. 2, the shift mode control system 100 according to an exemplary embodiment of the present invention includes a state diagnosis unit 110, a pneumatic pressure calculation unit 120, a load calculation unit 130, a data storage unit 140, and The shift mode control unit 150 is included.

The state diagnosis unit 110 detects whether the vehicle is started to determine whether the vehicle is started, detects the speed of the vehicle to determine whether the vehicle is in a stopped state, and interlocks with the airbag system installed in the vehicle to the driver's seat of the vehicle. It is determined whether the driver has boarded and determines whether the TPMS 10 operates normally in conjunction with the TPMS 10.

The pneumatic calculator 120 calculates an air pressure change amount of the tire by using the measurement data received from the TPMS 10 and the pre-stored reference data, and determines whether the air pressure change amount exceeds a preset setting value.

The load calculating unit 130 calculates the load change amount for the tire using the change in air pressure of the tire, calculates the load increase / decrease amount for the vehicle using the load change amount for the tire, and uses the load increase / decrease amount for the vehicle. Calculate the cumulative change for the load.

The data storage unit 140 stores reference data including the air pressure of the tire measured in the TPMS 10 or the air pressure of the preset tire, and stores the load change amount of the vehicle.

The shift mode control unit 150 uses a plurality of shift patterns having different shift timings according to a cumulative change amount of the load of the vehicle based on a reference shift pattern composed of a throttle amount according to the speed of the vehicle. The shift mode is determined, and the shift mode information on the determined shift mode is transmitted to the TCU 20.

Next, a method of controlling a shift mode of a transmission by a shift mode control system according to an exemplary embodiment of the present invention will be described with reference to FIG. 3.

3 is a diagram illustrating a shift mode control method according to an exemplary embodiment of the present invention.

As shown in FIG. 3, first, the state diagnosis unit 110 of the shift mode control system 100 detects whether the vehicle is started and determines whether the vehicle is started (S100).

Next, when it is determined that the vehicle is started, the state diagnosis unit 110 of the shift mode control system 100 detects the speed of the vehicle to determine whether the vehicle is in a stopped state (S105).

Thereafter, when it is determined that the vehicle is in a stopped state, the state diagnosis unit 110 of the shift mode control system 100 determines whether the driver is in the driver's seat of the vehicle in cooperation with the airbag system mounted on the vehicle (S110).

Next, when it is determined that the driver is in the driver's seat of the vehicle, the state diagnosis unit 110 of the shift mode control system 100 determines whether the TPMS 10 operates normally in association with the TPMS 10 (S115).

Then, when it is determined that the TPMS 10 operates normally, the air pressure calculating unit 120 of the shift mode control system 100 includes a plurality of air pressure measurement values corresponding to the air pressure of each of the plurality of tires from the TPMS 10. Receive the measurement data to the (S120).

At this time, the TPMS 10 may generate measurement data by measuring the air pressure for the tire installed in the vehicle.

In addition, when the vehicle has four tires, the air pressure calculating unit 120 of the shift mode control system 100 measures the first air pressure measurement value corresponding to the air pressure of the first tire and the second air pressure corresponding to the air pressure of the second tire. The measurement data may include a value, a third air pressure measurement value corresponding to the air pressure of the third tire, and a fourth air pressure measurement value corresponding to the air pressure of the fourth tire.

Next, the air pressure calculating unit 120 of the shift mode control system 100 calculates an air pressure change amount of each of the plurality of tires by using the received measurement data and pre-stored reference data (S125).

At this time, the data storage unit 140 of the shift mode control system 100 previously stores reference data which is a reference for calculating a change amount of the air pressure of the tire installed in the vehicle, and the reference data is previously stored in the TPMS 10. It may include the air pressure of each of the measured plurality of tires or may include the air pressure of each of the plurality of preset tires.

In addition, when the vehicle has four tires, the data storage 140 of the shift mode control system 100 may include a first air pressure reference value corresponding to the air pressure of the first tire and a second air pressure reference value corresponding to the air pressure of the second tire. The reference data may include reference data including a third air pressure reference value corresponding to the air pressure of the third tire, and a fourth air pressure reference value corresponding to the air pressure of the fourth tire.

Thereafter, the air pressure calculating unit 120 of the shift mode control system 100 compares the air pressure change amount of each of the plurality of tires with a preset setting value to determine whether the air pressure change amount of each of the plurality of tires exceeds the set value (S130). ).

Next, when it is determined that the air pressure change amount of each of the plurality of tires exceeds the set value, the load calculating unit 130 of the shift mode control system 100 may use the air pressure change amount of each of the plurality of tires, respectively. The amount of change in the load is calculated (S135).

Thereafter, the load calculator 130 of the shift mode control system 100 calculates a load increase / decrease amount for the vehicle by using the load change amount of each of the plurality of tires (S140).

Next, the load calculation unit 130 of the shift mode control system 100 calculates the cumulative change amount for the load of the vehicle by using the load increase / decrease amount for the vehicle (S145).

In this case, when the cumulative change amount is previously stored in the data storage unit 140, the load calculating unit 130 of the shift mode control system 100 adds the accumulated change amount and the load increase / decrease amount for the vehicle to accumulate the load of the vehicle. The amount of change can be updated.

Thereafter, the shift mode controller 150 of the shift mode control system 100 determines a shift mode corresponding to the cumulative change amount of the load of the vehicle (S150).

In this case, the shift mode controller 150 of the shift mode control system 100 may determine one of the plurality of shift patterns corresponding to the cumulative change amount of the load of the vehicle as the shift mode for the vehicle.

In addition, the shift mode control unit 150 of the shift mode control system 100 may load the vehicle from among a plurality of shift patterns having different shift points based on a reference shift pattern composed of a throttle amount according to the speed of the vehicle. Any one corresponding to the cumulative change amount for the vehicle may be determined as the shift mode for the vehicle.

For example, if the cumulative change in the load of the vehicle is 100 kg or more and less than 200 kg, the shift is performed at a speed that is 2% higher than the speed at which the shift is performed according to the reference shift pattern (hereinafter also referred to as 'speed shift target'). If the cumulative change in the load of the vehicle is 200 kg or more and less than 300 kg, the shift is performed at a speed that is 4% higher than the shift target speed. The shift is made at a speed increased by%, and if the cumulative change in the load of the vehicle is 400 kg or more and less than 500 kg, the shift is made at a speed that is 6% higher than the speed to be shifted.

Next, the shift mode controller 150 of the shift mode control system 100 transmits shift mode information about the determined shift mode to the TCU 20 (S155).

Next, a reference shift pattern according to an exemplary embodiment of the present invention will be described with reference to FIG. 4.

4 is a diagram illustrating another reference shift pattern in an embodiment of the present invention.

As shown in FIG. 4, the reference shift pattern includes a throttle amount according to the speed of the vehicle.

As described above, an optimal embodiment has been disclosed in the drawings and specification. Although specific terms have been employed herein, they are used for purposes of illustration only and are not intended to limit the scope of the invention as defined in the claims or the claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Tire air pressure monitoring system, TPMS
20: transmission system
21: transmission control unit, TCU
22: transmission
100: shift mode control system
110: status diagnosis unit
120: air pressure calculation unit
130: load calculation unit
140: Data storage unit
150: shift mode control unit

Claims (12)

Calculating an air pressure change amount of each of the plurality of tires by comparing the air pressure measurement value of each of the plurality of tires constituting the vehicle with an air pressure reference value of each of the plurality of tires;
Calculating a load increase / decrease amount for the vehicle using an air pressure change amount of each of the plurality of tires;
Determining a shift mode corresponding to the load increase / decrease amount; And
And transmitting shift mode information on the shift mode such that the transmission operates according to the shift mode. The method according to claim 1,
Determining the shift mode
A shift mode control method for determining a shift pattern corresponding to the load increase / decrease amount among a plurality of shift patterns having different shift points based on a reference shift pattern as a shift mode for the vehicle. The method according to claim 2,
The shift pattern corresponding to the load increase and decrease amount is
A shift mode control method in which the shift is performed at a speed increased by a ratio corresponding to the load increase / decrease amount rather than the speed at which the shift is made according to the reference shift pattern. The method according to claim 1,
Calculating the load increase and decrease amount
The shift mode control method of calculating a load increase / decrease amount when the air pressure change amount of each of the plurality of tires exceeds a set value. The method of claim 4,
Calculating the load increase and decrease amount
Calculating a load change amount for each of the plurality of tires by using an air pressure change amount of each of the plurality of tires; And
And calculating the increase / decrease amount of the load by using the load change amount for each of the plurality of tires. The method according to claim 1,
Determining the shift mode
Updating the cumulative change amount by adding the accumulated change amount and the load increase / decrease amount to the load of the vehicle; And
And a shift mode corresponding to the updated cumulative change amount. The method of claim 6,
The previously stored cumulative change amount is
Shift mode control method showing the cumulative change amount with respect to the load of the vehicle. An air pressure calculating unit for calculating an air pressure change amount of the tire by comparing the air pressure measurement value of the tire constituting the vehicle with an air pressure reference value;
A load calculation unit calculating a load change amount for the tire using the air pressure change amount, and calculating a load increase / decrease amount for the vehicle using the load change amount; And
And a shift mode controller configured to determine a shift pattern corresponding to the load increase / decrease amount among the plurality of shift patterns having different shift points based on a reference shift pattern as a shift mode for the vehicle. The method according to claim 8,
And a state diagnosis unit detecting the speed of the vehicle to determine whether the vehicle is in a stopped state and determining whether the driver is in the driver's seat of the vehicle. The method according to claim 9,
The air pressure calculation unit
And a shift mode control system calculating the air pressure change amount when the vehicle is stopped and the driver rides in the driver's seat of the vehicle according to the determination of the state diagnosis unit. The method according to claim 8,
The air pressure calculation unit
It is determined whether the air pressure change amount exceeds a set value,
The load calculation unit
The shift mode control system calculates the load change amount when the air pressure change amount exceeds the set value according to the determination of the air pressure calculator. The method according to claim 8,
The shift pattern is
A shift mode control system in which the shift is performed at a speed increased by a ratio corresponding to the load increase / decrease amount rather than the speed at which the shift is made according to the reference shift pattern.
KR1020110087739A 2011-08-31 2011-08-31 System and method for controlling mode of transmission KR20130024341A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107893847A (en) * 2016-10-04 2018-04-10 现代自动车株式会社 For the method and apparatus for the speed changer for controlling vehicle

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107893847A (en) * 2016-10-04 2018-04-10 现代自动车株式会社 For the method and apparatus for the speed changer for controlling vehicle

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