WO2006059418A1 - 車両の駆動力制御装置および車両 - Google Patents
車両の駆動力制御装置および車両 Download PDFInfo
- Publication number
- WO2006059418A1 WO2006059418A1 PCT/JP2005/016480 JP2005016480W WO2006059418A1 WO 2006059418 A1 WO2006059418 A1 WO 2006059418A1 JP 2005016480 W JP2005016480 W JP 2005016480W WO 2006059418 A1 WO2006059418 A1 WO 2006059418A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- driving force
- vehicle
- acceleration
- speed
- determination unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
- F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
- F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
- F02D11/105—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type characterised by the function converting demand to actuation, e.g. a map indicating relations between an accelerator pedal position and throttle valve opening or target engine torque
Definitions
- the present invention relates to a vehicle driving force control device and a vehicle, and more particularly to a vehicle driving force control device and a vehicle equipped with an automatic transmission.
- the throttle opening of the engine is uniquely determined according to the amount of depression of the accelerator pedal.
- control for correcting the amount of depression of the accelerator pedal has been performed.
- a vehicle driving force control device using such control is disclosed in, for example, Japanese Patent Laid-Open No. 2 0 0 3 1 3 1 2 3 1 8.
- Japanese Patent Laid-Open No. 2 0 3-3 1 2 3 1 8 the driver's acceleration expectation is detected by an increase in the prime mover load, and an effective “elongation” effect is produced by increasing the target driving force. Therefore, it describes a vehicle driving force control device that can achieve start acceleration and overtaking acceleration that meet the driver's acceleration expectation.
- An object of the present invention is to provide a driving force control device for a vehicle that performs shift control that satisfies the driver's acceleration expectation while reducing discomfort, and a vehicle including the same.
- the present invention is a vehicle driving force control device that determines whether or not a driver has requested acceleration, and when the determination unit determines that there is an acceleration request, the automatic transmission has a high speed from the low speed side. And a controller for increasing and correcting the driving force for propelling the vehicle in synchronism with the switching of the gear ratio to the side.
- the determination unit determines whether or not there is an acceleration request based on a result of determining whether or not a state where the amount of the accelerator operation by the driver is equal to or greater than a predetermined value continues for a predetermined time.
- the determination unit determines whether or not there is an acceleration request based on a result of determining whether or not a state where the change amount of the accelerator operation amount is within a predetermined range continues for a predetermined time.
- the vehicle is an internal combustion engine including a throttle device whose throttle opening can be changed according to an electrical signal, and is connected between an output shaft of the internal combustion engine and a rotating shaft of a wheel.
- an accelerator opening sensor that detects the position of the accelerator pedal for instructing acceleration
- a driving force that controls the automatic transmission and the internal combustion engine according to the output of the accelerator opening sensor and the vehicle speed signal
- the driving force control device determines whether or not there is an acceleration request based on the output of the accelerator opening sensor, and shifts from the low speed side to the high speed side of the automatic transmission when the determination unit determines that there is an acceleration request.
- a control unit that controls the internal combustion engine by increasing and correcting the target driving force for propelling the vehicle in synchronization with the ratio switching instruction.
- the determination unit determines whether or not there is an acceleration request based on a result of determining whether or not a state where the accelerator opening indicated by the accelerator pedal position is equal to or greater than a predetermined value continues for a predetermined time.
- the determination unit determines whether or not there is an acceleration request based on a result of determining whether or not a state where the change amount of the accelerator opening indicated by the accelerator pedal position is within a certain range continues for a predetermined time.
- control unit outputs the actual throttle opening corrected for increase with respect to the output of the accelerator opening sensor to the throttle device.
- control unit includes a storage unit that stores a target driving force corresponding to the driving force at the time of the switching instruction.
- FIG. 1 is a block diagram showing a vehicle equipped with a driving force control apparatus of the present invention.
- FIG. 2 is a shift diagram applied to a shift instruction for the automatic transmission 300.
- Fig. 3 shows changes in driving force and actual throttle opening with respect to vehicle speed.
- FIG. 4 is a flowchart for explaining the control performed by the ECU 100.
- FIG. 5 is a diagram showing the target driving force used in the stretch feeling improvement mode. BEST MODE FOR CARRYING OUT THE INVENTION
- FIG. 1 is a block diagram showing a vehicle equipped with the driving force control apparatus of the present invention.
- the power train of this vehicle includes an engine 1 0 0, a torque converter 2 0 0, an automatic transmission 3 0 0, an ECU 1 0 0 0, and an accelerator opening sensor 2 1 0 0 is included.
- the output shaft 1 0 1 of the engine 10 ° is connected to the input shaft of the torque converter 2 0 0.
- the engine 1 0 0 and the torque converter 2 0 0 are connected by a rotating shaft 2 0 1. Therefore, the output shaft rotational speed N E (engine rotational speed N E) of the engine 100 detected by the engine rotational speed sensor and the input shaft rotational speed (pump rotational speed) of the torque converter 2 0 0 are the same.
- the torque converter 20 0 includes a lockup clutch that directly connects the input shaft and the output shaft, a pump impeller on the input shaft side, a turbine blade wheel on the output shaft side, and a one-way clutch. And a stator that exhibits a torque amplification function.
- the torque converter 2 0 0 and the automatic transmission 3 0 0 are connected by a rotating shaft 2 0 1.
- the output shaft speed N O U T of the automatic transmission 300 is detected by the output shaft speed sensor.
- Such an automatic transmission 300 includes a plurality of friction elements such as clutches and brakes. Based on a predetermined operation table, clutch elements (for example, first to fourth clutches) that are friction elements, brake elements (for example, first to fourth brakes), one-way clutch elements (for example, first to fourth clutches) (One-way clutch) Force
- the hydraulic circuit is controlled so that it is engaged and released according to each requested gear. It is controlled.
- the automatic transmission 300 has a shifting position (shift position): a parking (P) position, a reverse traveling (R) position, a neutral (N), and a forward traveling (D) position.
- the ECU 1000 that controls these power trains includes an engine ECU 1010 that controls the engine 100 and an ECT—ECU 1 020 that controls the automatic transmission 300.
- ECT_ECU 1020 receives a signal SD representing the output shaft speed NOUT detected by the output shaft speed sensor.
- the engine ECU 1010 receives an engine speed signal S A representing the engine speed NE detected by the engine speed sensor.
- the engine speed signal SG representing the engine speed NE is input to the ECT—ECU 1020 from the engine ECU 10 10 power.
- These rotation speed sensors are provided to face the teeth of the rotation detection gear attached to the input shaft of the torque converter 200, the output shaft of the torque converter 200, and the output shaft of the automatic transmission 300.
- These rotational speed sensors are sensors that can detect slight rotations of the input shaft of the torque converter 200, the output shaft of the torque converter 200, and the output shaft of the automatic transmission 300. It is a sensor that uses a magnetoresistive element called sensor.
- the ECT—ECU 1020 outputs an engine control signal SF (for example, throttle opening signal) to the engine ECU 1010, and the engine ECU 1010 controls the engine 100 based on the engine control signal SF and other control signals. To do.
- an engine control signal SF for example, throttle opening signal
- E CT_E CU 1020 controls the electronic throttle in engine 100 according to the accelerator opening. As a result, torque is transmitted from the engine 100 to the drive wheels, and the vehicle is accelerated.
- the ECU 1020 outputs a control signal SC for controlling the mouth-up clutch of the torque converter 200. Based on this control signal SC, the engagement pressure of the lock-up clutch is controlled. Further, the ECT-ECU 1020 outputs a solenoid control signal SE to the automatic transmission 300. Based on this solenoid control signal SE, the linear solenoid valve and the on / off solenoid valve of the hydraulic circuit of the automatic transmission 300 are controlled, and a predetermined gear (for example, 1st to 5th speeds) is controlled. The frictional engagement elements are controlled to be engaged and released so as to constitute In addition, the ECU 100 0 0 has a storage unit 10 3 0 that stores various data and programs and additionally stores a target driving force that will be described later.
- FIG. 2 is a shift diagram applied to a shift instruction for the automatic transmission 300.
- the shift diagram shows the region of the shift gear stage to be used on the coordinate plane in which the horizontal axis is the vehicle speed and the vertical axis is the accelerator pedal opening.
- the boundary of the shift gear to be used is indicated by a line.
- shift gear stage shifts from the low speed side to the high speed side, i.e., upshifts
- shift gear stage changes from the high speed side to the low speed side i.e., downshifts
- FIG. 2 shows the case of upshifting.
- the vehicle travels at the first speed until the vehicle speed reaches 0 to 50 km / h, and when the vehicle speed reaches 50 kmz, the shift from the first speed to the second speed is executed. Is done.
- the second speed is maintained until the vehicle speed reaches 65 kmZ h.
- Fig. 3 is a diagram showing changes in driving force and actual throttle opening with respect to vehicle speed. Referring to Figs. 2 and 3, start and acceleration are performed with the accelerator pedal opening maintained at 20%. The case where speed is performed will be described.
- the vehicle runs at the 1st speed until the vehicle speed reaches 0 to 50 kmZh. Then, the shift is performed based on the accelerator pedal opening and the vehicle speed, based on the shift diagram of FIG.
- the vehicle speed drops stepwise at three points of 50 kmZh, 65 kmZh and 90 km / h, and a smooth acceleration feeling cannot be obtained.
- the ECU 1000 does not change the engine at the timing when the automatic transmission 300 shifts.
- the electronic throttle control signal SB given to 100 is changed in synchronization with the shift. As a result, the driving force changes smoothly, improving the feeling of starting acceleration.
- FIG. 4 is a flowchart for explaining the control performed by ECU 1000. From the main routine, this flow chart processing routine is executed at regular time intervals or every time a predetermined condition is satisfied.
- step S 1 the ECT—ECU 1020 receives the signal SH transmitted from the accelerator opening sensor 21 ⁇ 0, and the accelerator pedal opening has a predetermined value A. And a predetermined value B.
- the condition of step S1 is a condition for determining that the driver has depressed the accelerator pedal more than a certain value.
- step S2 If the accelerator pedal opening satisfies this condition, the process proceeds to step S2, and if not, the process proceeds to step S3.
- step S2 it is determined whether or not the amount of change in the accelerator pedal opening is between the predetermined value X and the predetermined value Y by observing the time change of the signal SH sent from the accelerator opening sensor 2100. . As a result, it can be determined that the driver is at least not released the accelerator pedal.
- step S2 If the condition of step S2 is satisfied, the accelerator pedal is not at least returning, so the process proceeds to step S4. On the other hand, if the condition of step S2 is not satisfied, the process proceeds to step S3.
- step S4 the time during which the accelerator pedal performs acceleration when the accelerator pedal satisfies both the conditions of steps S1 and S2 is accumulated. This time is this as variable C It is incremented every time the routine is passed. On the other hand, in step S3, since any of the conditions of steps SI and S2 is not satisfied, the accumulated time variable C is cleared and the process returns to the main routine.
- step S5 it is determined whether or not the shift determination from the first speed to the second speed or the shift determination from the second speed to the third speed has been performed. This shift determination is determined from the map based on the accelerator pedal opening detected by the signal SH sent from the accelerator opening sensor 210 and the vehicle speed signal SD based on the shift diagram shown in FIG. If no gear shift has occurred at this time, the process returns to the main routine.
- step S6 it is determined whether or not the time variable C accumulated in step S 4 exceeds a predetermined value. If variable C does not exceed the specified value, processing returns to the main routine. On the other hand, if the variable C exceeds the predetermined value in step S6, the process proceeds to step S7, and the stretch improvement mode is selected. Although it is difficult to set the timing for switching to the stretch-enhanced mode, it is performed in synchronization with the speed change in the present invention.
- Fig. 5 shows the target driving force used in the stretch feeling improvement mode.
- the target driving force in FIG. 5 is stored in the storage unit 10 0 30 in FIG.
- the initial driving force in FIG. 5 is the driving force when all the conditions up to step S7 in FIG. 4 are satisfied and the stretch feeling improvement mode is selected in step S7.
- the variable indicates the integrated acceleration time when the conditions of steps S 1 and S 2 in Fig. 4 are satisfied and the accelerator is constant. It is also assumed that the specified value has been exceeded.
- the ECT-ECU 100 0 determines that a shift from the first speed to the second speed is to be performed, the stretch feeling improvement mode is selected.
- the driving force 300 ON (Newton) at the time indicated as ⁇ 0 in Fig.
- the initial driving force is 50 km / h
- an electronic throttle control signal SB is output from the engine ECU 100 so that this target driving force is realized.
- the actual throttle opening is increased by more than 20% and control is performed.
- control is performed according to the numerical value in the row of the initial driving force 300 ON in FIG. 5 as long as the accelerator pedal opening is maintained within a certain range.
- the driving force is controlled to be 240.0 N.
- the driving force shown in FIG. Change the degree.
- the conditions for entering the stretch improvement mode are when the accelerator pedal is depressed for a predetermined period or more for a predetermined period and at least the accelerator pedal is not returned. When this condition is satisfied, the mode is switched in synchronism with the determination of upshifting for the automatic transmission.
- Synchronizing when shifting is judged makes it easier for the driver to accept when the mode changes to the stretch-enhancement mode.
- by switching to the stretch feeling improvement mode in synchronization with the shift it is possible to eliminate a sense of incongruity.
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Vehicle Engines Or Engines For Specific Uses (AREA)
- Control Of Transmission Device (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
- Electrical Control Of Air Or Fuel Supplied To Internal-Combustion Engine (AREA)
- Combined Controls Of Internal Combustion Engines (AREA)
- Control Of Driving Devices And Active Controlling Of Vehicle (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004346712A JP2006152959A (ja) | 2004-11-30 | 2004-11-30 | 車両の駆動力制御装置および車両 |
| JP2004-346712 | 2004-11-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2006059418A1 true WO2006059418A1 (ja) | 2006-06-08 |
Family
ID=36564858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/016480 Ceased WO2006059418A1 (ja) | 2004-11-30 | 2005-09-01 | 車両の駆動力制御装置および車両 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2006152959A (ja) |
| WO (1) | WO2006059418A1 (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5742684B2 (ja) * | 2011-11-25 | 2015-07-01 | トヨタ自動車株式会社 | エンジンの予測制御装置 |
| JP6665810B2 (ja) | 2017-02-24 | 2020-03-13 | トヨタ自動車株式会社 | 車両の変速制御装置 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586918A (ja) * | 1991-09-25 | 1993-04-06 | Mazda Motor Corp | 車両のパワートレイン制御装置 |
| JPH0599011A (ja) * | 1991-10-11 | 1993-04-20 | Fuji Heavy Ind Ltd | 車両用エンジンの制御装置 |
| JPH09287502A (ja) * | 1996-04-23 | 1997-11-04 | Denso Corp | エンジン制御方法及び装置 |
| JPH11101142A (ja) * | 1997-09-26 | 1999-04-13 | Mitsubishi Motors Corp | 車両用出力トルク制御装置 |
| JP2002300701A (ja) * | 2001-03-30 | 2002-10-11 | Nissan Motor Co Ltd | 4輪駆動装置 |
| JP2003312318A (ja) * | 2002-04-25 | 2003-11-06 | Nissan Motor Co Ltd | 車両の駆動力制御装置 |
-
2004
- 2004-11-30 JP JP2004346712A patent/JP2006152959A/ja not_active Withdrawn
-
2005
- 2005-09-01 WO PCT/JP2005/016480 patent/WO2006059418A1/ja not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0586918A (ja) * | 1991-09-25 | 1993-04-06 | Mazda Motor Corp | 車両のパワートレイン制御装置 |
| JPH0599011A (ja) * | 1991-10-11 | 1993-04-20 | Fuji Heavy Ind Ltd | 車両用エンジンの制御装置 |
| JPH09287502A (ja) * | 1996-04-23 | 1997-11-04 | Denso Corp | エンジン制御方法及び装置 |
| JPH11101142A (ja) * | 1997-09-26 | 1999-04-13 | Mitsubishi Motors Corp | 車両用出力トルク制御装置 |
| JP2002300701A (ja) * | 2001-03-30 | 2002-10-11 | Nissan Motor Co Ltd | 4輪駆動装置 |
| JP2003312318A (ja) * | 2002-04-25 | 2003-11-06 | Nissan Motor Co Ltd | 車両の駆動力制御装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2006152959A (ja) | 2006-06-15 |
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