JP2006299909A - Speed control device for vehicle - Google Patents

Speed control device for vehicle Download PDF

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JP2006299909A
JP2006299909A JP2005122387A JP2005122387A JP2006299909A JP 2006299909 A JP2006299909 A JP 2006299909A JP 2005122387 A JP2005122387 A JP 2005122387A JP 2005122387 A JP2005122387 A JP 2005122387A JP 2006299909 A JP2006299909 A JP 2006299909A
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vehicle speed
accelerator opening
vehicle
predetermined
restriction
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Yasushi Kita
靖 喜多
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Toyota Motor Corp
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Toyota Motor Corp
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/10Internal combustion engine [ICE] based vehicles
    • Y02T10/40Engine management systems

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Abstract

<P>PROBLEM TO BE SOLVED: To provide a speed control device for a vehicle improving the operability of the vehicle. <P>SOLUTION: The vehicle provided with a vehicle speed limiting means limiting vehicle speed at predetermined speed or less and an accelerator opening detecting means detecting accelerator opening is provided with a change rate calculation means calculating change rate of accelerator opening detected by the accelerator opening detection means, a determination means determining whether the change rate calculated by the change rate calculation means is predetermined rate or higher, a limit removal means removing vehicle speed limit by the vehicle speed limit means when the determination means determine that the change rate is predetermined rate or higher. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、車速を所定速度以下に制限する車両用速度制御装置に関する。   The present invention relates to a vehicle speed control device that limits a vehicle speed to a predetermined speed or less.

従来、所定パターンのアクセル操作が行われたとき、車速を所定の制限値以下に抑える車速制限を所定時間だけ解除する車速制限装置が知られている(例えば、特許文献1参照)。   2. Description of the Related Art Conventionally, there has been known a vehicle speed limiting device that releases a vehicle speed limit that suppresses a vehicle speed to a predetermined limit value or less for a predetermined time when an accelerator operation of a predetermined pattern is performed (see, for example, Patent Document 1).

また、操舵パターンが車線変更パターンとなり、アクセル開度が規定値以上のとき、車速制限を一時的に解除する車速制限装置が知られている。
特開平10−252520号公報 特開2000−104583号公報
There is also known a vehicle speed limiting device that temporarily cancels the vehicle speed limitation when the steering pattern becomes a lane change pattern and the accelerator opening is equal to or greater than a specified value.
JP-A-10-252520 JP 2000-104583 A

しかしながら、上記特許文献1に示す車速制限装置においては、他車両の追い越し等のように、一時的に加速したいとき、運転者は車速制限を解除する為に所定パターンのアクセル操作を行わなければならないことから、車両操作性の低下に繋がる。   However, in the vehicle speed limiting device disclosed in Patent Document 1, when it is desired to temporarily accelerate, such as overtaking another vehicle, the driver must perform a predetermined pattern of accelerator operation to release the vehicle speed limitation. This leads to a decrease in vehicle operability.

また、上記特許文献2に示す車速制限装置において、車線変更のとき以外は車速制限が解除されないことから、直進状態で運転者が加速した場合に車速制限が解除されず、車両操作性の低下に繋がることがある。   Further, in the vehicle speed limiting device shown in Patent Document 2, since the vehicle speed limit is not released except when the lane is changed, the vehicle speed limit is not released when the driver accelerates in a straight traveling state, and the vehicle operability is reduced. May be connected.

本発明はこのような課題を解決するためのものであり、車両の操作性を向上させることを主たる目的とする。   The present invention has been made to solve such problems, and its main object is to improve the operability of the vehicle.

上記目的を達成するための本発明の一態様は、車速を所定速度以下に制限する車速制限手段と、アクセル開度を検出するアクセル開度検出手段と、を備える車両用速度制御装置であって、上記アクセル開度検出手段により検出された上記アクセル開度の変化割合を算出する変化割合算出手段と、上記変化割合算出手段により算出された上記変化割合が所定割合以上であるか否かを判定する判定手段と、上記判定手段により上記変化割合が上記所定割合以上であると判定されたとき、上記車速制限手段による上記車速の上記制限を解除する制限解除手段と、を備えることを特徴とする車両用速度制御装置である。   One aspect of the present invention for achieving the above object is a vehicle speed control device comprising vehicle speed limiting means for limiting the vehicle speed to a predetermined speed or less, and accelerator opening detection means for detecting an accelerator opening. A change rate calculating means for calculating a change rate of the accelerator opening detected by the accelerator opening detecting means, and determining whether or not the change rate calculated by the change rate calculating means is a predetermined rate or more. And a restriction release means for releasing the restriction on the vehicle speed by the vehicle speed restriction means when the change ratio is determined to be greater than or equal to the predetermined ratio by the determination means. This is a vehicle speed control device.

この一態様によれば、判定手段により変化割合が所定割合以上であると判定されたとき、制限解除手段は車速制限手段による車速の制限を解除する。判定手段により変化割合が所定割合以上と判定されたとき、運転者が車両を加速させようとしていると判定できる。したがって、運転者が車両を加速させようとしているときに、運転者が特別な操作をすること無く、制限解除手段は車速制限手段による車速の制限を自動的に解除し、車両の加速性能を確実に維持する。すなわち、車両の操作性を向上させることができる。   According to this aspect, when the change rate is determined by the determination unit to be equal to or greater than the predetermined rate, the restriction release unit releases the vehicle speed limitation by the vehicle speed limit unit. When the change rate is determined to be greater than or equal to the predetermined rate by the determination unit, it can be determined that the driver is going to accelerate the vehicle. Therefore, when the driver is accelerating the vehicle, the restriction release means automatically releases the vehicle speed restriction by the vehicle speed restriction means without any special operation by the driver, thereby ensuring the acceleration performance of the vehicle. To maintain. That is, the operability of the vehicle can be improved.

また、この一態様において、上記判定手段は、上記アクセル開度検出手段により検出された上記アクセル開度が所定開度以上であるか否かを判定し、上記判定手段により上記アクセル開度が上記所定開度以上であると判定されたとき、上記制限解除手段は上記車速制限手段による上記車速の上記制限を解除するのが好ましい。   Further, in this aspect, the determination unit determines whether or not the accelerator opening detected by the accelerator opening detection unit is equal to or greater than a predetermined opening, and the accelerator opening is determined by the determination unit. When it is determined that the opening degree is equal to or greater than the predetermined opening degree, it is preferable that the restriction release unit releases the restriction on the vehicle speed by the vehicle speed restriction unit.

アクセル開度の変化割合が所定割合以上という判定と、この判定に加えて、運転者によりアクセルが踏み込まれ、アクセル開度が所定開度以上という判定に基づけば、運転者が車両を加速させようとしていることをより高精度に判定できる。したがって、高精度の判定に基づいて、制限解除手段は車速制限手段による車速の制限を解除すれば、車両の加速性能をより確実に維持できる。   Based on the determination that the rate of change of the accelerator opening is greater than or equal to the predetermined ratio and the determination that the accelerator is depressed by the driver and the accelerator opening is greater than or equal to the predetermined opening, in addition to this determination, the driver will accelerate the vehicle. Can be determined with higher accuracy. Therefore, if the restriction release means releases the vehicle speed restriction by the vehicle speed restriction means based on the highly accurate determination, the acceleration performance of the vehicle can be maintained more reliably.

また、この一態様において、上記アクセル開度が上記所定開度以上で保持される保持時間を計測する保持時間計測手段を更に備え、上記判定手段は、上記保持時間計測手段により計測された上記保持時間が所定時間以上であるか否かを判定し、上記判定手段により、上記保持時間が所定時間以上であると判定されたとき、上記制限解除手段は上記車速制限手段による上記車速の前記制限を解除するのが好ましい。   Further, in this aspect, the vehicle further includes a holding time measuring unit that measures a holding time in which the accelerator opening is held at the predetermined opening or more, and the determination unit is configured to measure the holding measured by the holding time measuring unit. It is determined whether or not the time is not less than a predetermined time, and when the determination means determines that the holding time is not less than the predetermined time, the restriction canceling means restricts the vehicle speed by the vehicle speed limiting means. It is preferable to cancel.

アクセル開度の変化割合が所定割合以上という判定と、アクセル開度が所定開度以上という判定と、これら判定に加えて、運転者によりアクセルが踏み込まれ、所定開度以上で保持される保持時間が所定時間以上という判定に基づけば、運転者が車両を加速させようとしていることをさらに高精度に判定できる。   In addition to the determination that the rate of change of the accelerator opening is greater than or equal to the predetermined ratio, the determination that the accelerator opening is greater than or equal to the predetermined opening, and the determination, the holding time that the accelerator is depressed by the driver and held above the predetermined opening Can be determined with higher accuracy that the driver is accelerating the vehicle.

なお、上記アクセル開度が上記所定開度とは、例えば上記アクセル開度が全開の状態を指す。   In addition, the said accelerator opening refers to the state in which the said accelerator opening is fully open, for example.

さらに、この一態様において、上記制限手段は上記車両の上記制限を一定時間だけ解除するのが好ましい。   Furthermore, in this one aspect, it is preferable that the restriction means releases the restriction of the vehicle for a certain period of time.

これにより、通常は車速制限手段により車速が制限されることで、車両の燃料消費が抑制されつつ、更に、運転者が車両を加速させようとしている一定時間のみ車速制限手段による車速の制限が解除され、車両の加速性能が確実に維持される。すなわち、車両の燃料消費を抑制しつつ、車両の操作性を向上させることができる。   As a result, the vehicle speed is normally restricted by the vehicle speed restriction means, so that fuel consumption of the vehicle is suppressed, and further, the restriction of the vehicle speed by the vehicle speed restriction means is released only for a certain period of time when the driver tries to accelerate the vehicle. Thus, the acceleration performance of the vehicle is reliably maintained. That is, the operability of the vehicle can be improved while suppressing the fuel consumption of the vehicle.

本発明によれば、車両の操作性を向上させることができる。   According to the present invention, the operability of the vehicle can be improved.

以下、本発明を実施するための最良の形態について、添付図面を参照しながら実施例を挙げて説明する。なお、後述する車速制限手段(アジャスタブルスピードリミッタ)の基本概念、主要なハードウェア構成、作動原理、及び基本的な制御手法等については当業者には既知であるため、詳しい説明を省略する。   Hereinafter, the best mode for carrying out the present invention will be described with reference to the accompanying drawings. The basic concept of the vehicle speed limiting means (adjustable speed limiter), the main hardware configuration, the operating principle, the basic control method, etc., which will be described later, are known to those skilled in the art and will not be described in detail.

図1は、本発明の一実施例に係る車両用速度制御装置のシステム構成を示す概略図である。本実施例に係る車両用速度制御装置1はECU(Electronic Control Unit、電子制御ユニット)3等の制御手段を中心に構成されている。   FIG. 1 is a schematic diagram showing a system configuration of a vehicle speed control apparatus according to an embodiment of the present invention. The vehicle speed control apparatus 1 according to the present embodiment is mainly configured by control means such as an ECU (Electronic Control Unit) 3.

ECU3は、マイクロコンピュータから構成されており、制御、演算プログラムに従って各種処理を実行するとともに、装置の各部を制御するCPU(Central Processing Unit)、CPUの実行プログラムを格納するROM(Read Only Memory)、演算結果等を格納する読書き可能なRAM(Random Access Memory)、タイマ、カウンター、入力インターフェイス、及び出力インターフェイスを有している。   The ECU 3 is composed of a microcomputer, executes various processes according to control and arithmetic programs, and controls a CPU (Central Processing Unit) for controlling each part of the apparatus, a ROM (Read Only Memory) for storing an execution program for the CPU, It has a readable / writable RAM (Random Access Memory) for storing calculation results and the like, a timer, a counter, an input interface, and an output interface.

ECU3には車速を検出する車速センサ5と、アクセル開度(アクセルペダルの踏込み量)を検出するアクセル開度センサ7が接続されている。   The ECU 3 is connected to a vehicle speed sensor 5 that detects the vehicle speed and an accelerator opening sensor 7 that detects the accelerator opening (the amount of depression of the accelerator pedal).

また、ECU3は、車速を予め設定された所定速度以下に制限する車速制限手段3aを有している。なお、運転者により設定部9を介して設定された設定値が、所定速度としてECU3内のRAMに格納されており、この設定値は設定部9を介して自由に設定変更できる。   Further, the ECU 3 has vehicle speed limiting means 3a that limits the vehicle speed to a predetermined speed or less that is set in advance. A setting value set by the driver via the setting unit 9 is stored in the RAM in the ECU 3 as a predetermined speed, and the setting value can be freely changed via the setting unit 9.

通常、ECU3は回転センサ13により検出されたエンジン11の回転数と、アクセル開度センサ7から検出されたアクセル開度とに応じて、エンジン11に制御信号を送信し、エンジン11の燃料噴射量もしくは吸入空気量を制御している。   Normally, the ECU 3 transmits a control signal to the engine 11 according to the number of revolutions of the engine 11 detected by the rotation sensor 13 and the accelerator opening detected from the accelerator opening sensor 7, and the fuel injection amount of the engine 11. Or the amount of intake air is controlled.

一方で、車両の燃料消費を抑制する目的から、車速制限手段3aはエンジン11の燃料噴射量もしくは吸入空気量を絞ることにより、エンジン11の回転数を抑制し、車速を所定速度以下に制限している。   On the other hand, for the purpose of reducing the fuel consumption of the vehicle, the vehicle speed limiting means 3a restricts the rotational speed of the engine 11 by limiting the fuel injection amount or the intake air amount of the engine 11 and limits the vehicle speed to a predetermined speed or less. ing.

なお、通常の車両走行状態においては、車速制限手段3aにより車速が所定速度以下に制限されている。   In a normal vehicle running state, the vehicle speed is limited to a predetermined speed or less by the vehicle speed limiting means 3a.

ECU3は、アクセル開度センサ7からのアクセル開度に基づいて、アクセル開度の変化率(変化割合)を算出する変化割合算出手段3bを有している。ここで、アクセル開度の変化率とは、単位時間当たりのアクセル開度の変化量である、アクセル開度の勾配を指す。   The ECU 3 has a change rate calculation means 3b that calculates a change rate (change rate) of the accelerator opening based on the accelerator opening from the accelerator opening sensor 7. Here, the rate of change of the accelerator opening refers to the gradient of the accelerator opening, which is the amount of change in the accelerator opening per unit time.

また、ECU3は変化割合算出手段3bにより算出されたアクセル開度の変化率が所定値以上であるか否かを判定する判定手段3cを有している。   The ECU 3 also has a determination unit 3c that determines whether or not the change rate of the accelerator opening calculated by the change rate calculation unit 3b is equal to or greater than a predetermined value.

なお、運転者に車両を加速させる意思があるときのアクセル開度の変化率が実験的に求められ、この実験値がアクセル開度の変化率に対する所定値として、ECU3のROMに設定される。   Note that the rate of change of the accelerator opening when the driver intends to accelerate the vehicle is obtained experimentally, and this experimental value is set in the ROM of the ECU 3 as a predetermined value for the rate of change of the accelerator opening.

例えば、他車両を追越しする場合、登坂路を走行する場合等のように、運転者が車両を加速させようとしている場合、アクセルペダルが急に踏込まれる傾向にあることから、アクセル開度の変化率(上昇勾配)が増加し、所定値以上になると推定できる。   For example, when the driver is trying to accelerate the vehicle, such as when overtaking another vehicle or traveling on an uphill road, the accelerator pedal tends to be depressed suddenly. It can be estimated that the rate of change (inclination) increases and exceeds a predetermined value.

したがって、判定手段3cによりアクセル開度の変化率が所定値以上と判定されたときは、運転者が車両を加速させようとしている可能性がある。   Therefore, when the determination means 3c determines that the change rate of the accelerator opening is equal to or greater than a predetermined value, the driver may be accelerating the vehicle.

また、ECU3はアクセル開度が所定開度以上で保持された保持時間を計測する保持時間計測手段3dを有している。保持時間計測手段3dはECU3内のタイマ等から構成され、タイマはアクセル開度センサ7からのアクセル開度が所定開度になると計測を開始し、当該所定開度以上に保持された保持時間を計測する。   Further, the ECU 3 has a holding time measuring means 3d for measuring a holding time in which the accelerator opening is held at a predetermined opening or more. The holding time measuring means 3d is composed of a timer or the like in the ECU 3, and the timer starts measurement when the accelerator opening from the accelerator opening sensor 7 reaches a predetermined opening, and the holding time held above the predetermined opening is determined. measure.

判定手段3cはアクセル開度が所定開度(例えば、開度が最大値となる全開又は全開近く)以上で保持される保持時間が所定時間以上であるか否かを判定する。   The determination means 3c determines whether or not the holding time when the accelerator opening is equal to or greater than a predetermined opening (for example, fully opened or near fully opened at which the opening reaches the maximum value) is equal to or longer than a predetermined time.

なお、運転者が車両を加速させようとしている場合、アクセルペダルは大きく踏込まれ、アクセル開度が所定開度以上(例えば、全開又は全開近く)の状態で所定時間以上(例えば、5秒)、保持される傾向が見られる。   When the driver is accelerating the vehicle, the accelerator pedal is greatly depressed, and the accelerator opening is not less than a predetermined opening (for example, fully open or close to full opening) for a predetermined time or longer (for example, 5 seconds), There is a tendency to be retained.

したがって、判定手段3cによりアクセル開度が所定開度以上の状態で、所定時間以上、保持されたと判定されたとき、運転者が車両を加速させようとしている可能性がある。   Therefore, when it is determined by the determination means 3c that the accelerator opening is held for a predetermined time or more in a state where the accelerator opening is not less than the predetermined opening, the driver may be trying to accelerate the vehicle.

すなわち、判定手段3cにより、アクセル開度の変化率が所定値以上と判定され、かつアクセル開度が所定開度以上の状態で、所定時間以上、保持されたと判定されたとき、運転者が車両を加速させようとしていると判定できる。ここで、所定開度は、例えば全開のときの開度が予めECU3のROMに設定され、所定時間は実験的に求めた最適値(例えば、5秒)が予めECU3のROMに設定される。   That is, when the determination means 3c determines that the change rate of the accelerator opening is equal to or greater than a predetermined value, and the accelerator opening is determined to be held for a predetermined time or more in a state where the accelerator opening is equal to or greater than the predetermined opening, Can be determined to be accelerated. Here, as for the predetermined opening, for example, the opening when fully opened is preset in the ROM of the ECU 3, and the optimum value (for example, 5 seconds) obtained experimentally is preset in the ROM of the ECU 3.

上述したように、判定手段3cにより、他車両の追越しの場合、登坂路の走行の場合等の運転者が車両を加速させようとしていると判定されたときに、車速制限手段3aによる車速を所定速度以下にする制限を解除すれば、必要な加速性能を確実に維持することができる。   As described above, when the determination unit 3c determines that the driver is going to accelerate the vehicle when overtaking another vehicle or traveling on an uphill road, the vehicle speed by the vehicle speed limiting unit 3a is set to a predetermined value. If the restriction below the speed is released, the necessary acceleration performance can be reliably maintained.

また、ECU3は判定手段3cにより運転者が車両を加速させようとしていると判定されたとき、車速制限手段3aによる車速の制限を解除する制限解除手段3eを有している。制限解除手段3eは、判定手段3cにより運転者が車両を加速させようとしていると判定されたとき、車速制限手段3aによる車速の制限を解除する。これにより、運転者は車速が所定速度以下に制限されること無く、車両を加速させることが可能となり、例えば、他車両の追越し等をスムーズに行うことが可能となる。   Further, the ECU 3 has a restriction release means 3e for releasing the restriction of the vehicle speed by the vehicle speed restriction means 3a when the decision means 3c determines that the driver is going to accelerate the vehicle. When the determination means 3c determines that the driver is accelerating the vehicle, the restriction release means 3e releases the vehicle speed restriction by the vehicle speed restriction means 3a. As a result, the driver can accelerate the vehicle without the vehicle speed being limited to a predetermined speed or less, and, for example, can smoothly pass other vehicles.

なお、制限解除手段3eによる車速の制限解除は、予め設定された所定時間だけ行われる。所定時間経過後は、車速制限手段3aによる車速の制限が自動で再度実行される。このようにして、車両加速が必要なときは車両の加速性能を確実に維持して、車両の操作性を向上させている。   The restriction release of the vehicle speed by the restriction release means 3e is performed for a predetermined time set in advance. After the predetermined time has elapsed, the vehicle speed restriction by the vehicle speed restriction means 3a is automatically executed again. In this way, when vehicle acceleration is required, the acceleration performance of the vehicle is reliably maintained and the operability of the vehicle is improved.

なお、上述した変化割合算出手段3b、判定手段3c、車速制限手段3a、および制限解除手段3eはECU3のROM内に格納され、CPUにより実行されるプログラムで実現される。   Note that the above-described change rate calculation means 3b, determination means 3c, vehicle speed restriction means 3a, and restriction release means 3e are stored in the ROM of the ECU 3 and realized by a program executed by the CPU.

次に、車両用速度制御装置1の制御処理のフローについて説明する。   Next, the flow of control processing of the vehicle speed control device 1 will be described.

図2は、車両用速度制御装置1の制御処理のフローを示すフローチャートである。なお、図2に示す制御ルーチンは所定の微小時間毎、例えば64ms毎に繰返し実行される。   FIG. 2 is a flowchart showing a flow of control processing of the vehicle speed control device 1. The control routine shown in FIG. 2 is repeatedly executed every predetermined minute time, for example, every 64 ms.

通常の走行においては、車速制限手段3aにより車速が所定速度以下に制限されている。   In normal traveling, the vehicle speed is limited to a predetermined speed or less by the vehicle speed limiting means 3a.

次に、判定手段3cにより、変化割合算出手段3bにより算出されたアクセル開度の変化率が所定値以上であるか否かが判定される(S100)。   Next, it is determined by the determination means 3c whether or not the change rate of the accelerator opening calculated by the change rate calculation means 3b is a predetermined value or more (S100).

判定手段3cはアクセル開度の変化率が所定値以上であると判定したとき、更にアクセル開度が全開位置に保持される保持時間が所定時間以上であるか否かを判定する(S110)。   When the determination means 3c determines that the change rate of the accelerator opening is equal to or greater than a predetermined value, it further determines whether or not the holding time during which the accelerator opening is held at the fully open position is equal to or longer than a predetermined time (S110).

判定手段3cにより、アクセル開度が全開位置に保持される保持時間が所定時間以上であると判定されたとき、車両を加速させる意思が運転者にあると判断され、制限解除手段3eは一定時間、車速制限手段3aによる車速の制限を解除する(S120)。   When the determination means 3c determines that the holding time during which the accelerator opening is held at the fully open position is equal to or longer than a predetermined time, it is determined that the driver is willing to accelerate the vehicle, and the restriction release means 3e The vehicle speed restriction by the vehicle speed restriction means 3a is released (S120).

上述した(S100)の処理において、判定手段3cにより、アクセル開度の変化率が所定値以上でないと判定されたとき、運転者が車両を加速させようとしていないと判断され、車速制限手段3aは車速を所定速度以下に制限するようなエンジン制御を継続する(S130)。   In the process of (S100) described above, when the determination means 3c determines that the rate of change of the accelerator opening is not equal to or greater than a predetermined value, it is determined that the driver is not trying to accelerate the vehicle, and the vehicle speed limiting means 3a is Engine control is continued to limit the vehicle speed to a predetermined speed or less (S130).

上述した(S110)の処理において、判定手段3cにより、アクセル開度が全開位置に保持される保持時間が所定時間以上でないと判定されたとき、車両を加速させる意思が運転者にないと判断され、車速制限手段3aは車速を所定速度以下に制限するようなエンジン制御を継続する(S130)。   In the process of (S110) described above, when the determination means 3c determines that the holding time during which the accelerator opening is held at the fully open position is not longer than the predetermined time, it is determined that the driver does not intend to accelerate the vehicle. The vehicle speed limiting means 3a continues engine control to limit the vehicle speed to a predetermined speed or less (S130).

以上、判定手段3cにより、アクセル開度の変化率が所定値以上と判定され、かつアクセル開度が所定開度以上の状態で、所定時間以上、保持されたと判定されたとき、運転者が車両を加速させようとしていると判定される。制限解除手段3eは判定手段3cの判定に基づいて、車速制限手段3aによる車速の制限を一定時間、自動的に解除する。すなわち、運転者が特別な操作をすること無く、車両を加速させようとする意思が判定手段3cにより推測され、制限解除手段3eはこの推測に基づいて、必要な一定時間のみ車速の制限を自動的に解除する。したがって、車速制限手段3aによって車両の燃料消費が抑制されつつ、運転者が車両の加速を必要とするときには、制限解除手段3eにより車両の加速性能を確実にかつ自動的に維持することができる。これにより、車両の燃料消費を抑制しつつ、車両の操作性を向上させることができる。   As described above, when the determination means 3c determines that the rate of change of the accelerator opening is equal to or greater than a predetermined value, and the accelerator opening is equal to or greater than the predetermined opening, it is determined that the driver has been held for a predetermined time or longer. Is determined to be accelerated. The restriction release means 3e automatically releases the vehicle speed restriction by the vehicle speed restriction means 3a for a predetermined time based on the determination by the determination means 3c. In other words, the determination means 3c estimates that the driver intends to accelerate the vehicle without performing a special operation, and the restriction release means 3e automatically limits the vehicle speed only for a certain period of time based on this estimation. Release it. Therefore, when the driver needs to accelerate the vehicle while the vehicle speed restriction means 3a suppresses the fuel consumption of the vehicle, the restriction releasing means 3e can reliably and automatically maintain the acceleration performance of the vehicle. Thereby, the operativity of a vehicle can be improved, suppressing the fuel consumption of a vehicle.

以上、本発明を実施するための最良の形態について一実施例を用いて説明したが、本発明はこうした一実施例に何等限定されるものではなく、本発明の要旨を逸脱しない範囲内において、上述した一実施例に種々の変形及び置換を加えることができる。   As mentioned above, although the best mode for carrying out the present invention has been described using one embodiment, the present invention is not limited to such one embodiment, and within the scope not departing from the gist of the present invention, Various modifications and substitutions can be made to the above-described embodiment.

本発明は、アジャスタブルスピードリミッタ装置等の車両用速度制限装置に利用できる。搭載される車両の外観、重量、サイズ、走行性能等は問わない。   The present invention can be used for a vehicle speed limiting device such as an adjustable speed limiter device. The appearance, weight, size, running performance, etc. of the vehicle to be mounted are not limited.

本発明の一実施例に係る車両用速度制御装置のシステム構成を示す概略図である。It is the schematic which shows the system configuration | structure of the speed control apparatus for vehicles which concerns on one Example of this invention. 車両用速度制御装置の制御処理のフローを示すフローチャートである。It is a flowchart which shows the flow of the control processing of the vehicle speed control apparatus.

符号の説明Explanation of symbols

1 車両用速度制御装置
3 ECU
3a 車速制限手段
3b 変化割合算出手段
3c 判定手段
3d 保持時間計測手段
3e 制限解除手段
5 車速センサ
7 アクセル開度センサ
9 設定部
11 エンジン
13 回転センサ
1 vehicle speed control device 3 ECU
3a Vehicle speed limiting means 3b Change rate calculating means 3c Judging means 3d Holding time measuring means 3e Restriction releasing means 5 Vehicle speed sensor 7 Accelerator opening sensor 9 Setting unit 11 Engine 13 Rotation sensor

Claims (3)

車速を所定速度以下に制限する車速制限手段と、
アクセル開度を検出するアクセル開度検出手段と、を備える車両用速度制御装置であって、
前記アクセル開度検出手段により検出された前記アクセル開度の変化割合を算出する変化割合算出手段と、
前記変化割合算出手段により算出された前記変化割合が所定割合以上であるか否かを判定する判定手段と、
前記判定手段により前記変化割合が前記所定割合以上であると判定されたとき、前記車速制限手段による前記車速の前記制限を解除する制限解除手段と、を備えることを特徴とする車両用速度制御装置。
Vehicle speed limiting means for limiting the vehicle speed to a predetermined speed or less;
An accelerator opening detecting means for detecting an accelerator opening, and a vehicle speed control device comprising:
Change rate calculating means for calculating a change rate of the accelerator opening detected by the accelerator opening detecting means;
Determination means for determining whether or not the change ratio calculated by the change ratio calculation means is a predetermined ratio or more;
A vehicle speed control device comprising: a restriction release means for releasing the restriction of the vehicle speed by the vehicle speed restriction means when the determination means determines that the change ratio is equal to or greater than the predetermined ratio. .
請求項1記載の車両用速度制御装置であって、
前記判定手段は、前記アクセル開度検出手段により検出された前記アクセル開度が所定開度以上であるか否かを判定し、
前記判定手段により、前記アクセル開度が前記所定開度以上であると判定されたとき、前記制限解除手段は前記車速制限手段による前記車速の前記制限を解除することを特徴とする車両用速度制御装置。
The vehicle speed control device according to claim 1,
The determining means determines whether or not the accelerator opening detected by the accelerator opening detecting means is equal to or greater than a predetermined opening;
The vehicle speed control characterized in that when the determination means determines that the accelerator opening is equal to or greater than the predetermined opening, the restriction release means releases the restriction of the vehicle speed by the vehicle speed restriction means. apparatus.
請求項2記載の車両用速度制御装置であって、
前記アクセル開度が前記所定開度以上で保持される保持時間を計測する保持時間計測手段を更に備え、
前記判定手段は、前記保持時間計測手段により計測された前記保持時間が所定時間以上であるか否かを判定し、
前記判定手段により、前記保持時間が所定時間以上であると判定されたとき、前記制限解除手段は前記車速制限手段による前記車速の前記制限を解除することを特徴とする車両用速度制御装置。
The vehicle speed control device according to claim 2,
A holding time measuring means for measuring a holding time at which the accelerator opening is held above the predetermined opening;
The determination means determines whether or not the holding time measured by the holding time measuring means is a predetermined time or more,
The vehicle speed control device according to claim 1, wherein when the determination unit determines that the holding time is equal to or longer than a predetermined time, the restriction release unit releases the restriction of the vehicle speed by the vehicle speed restriction unit.
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JP2008202678A (en) * 2007-02-20 2008-09-04 Toyota Motor Corp Speed limiting device for vehicle
JP2009107451A (en) * 2007-10-29 2009-05-21 Toyota Motor Corp Vehicle traveling control device
EP2065281A1 (en) 2007-11-30 2009-06-03 Toyota Jidosha Kabushiki Kaisha Vehicle speed limiting system of motor vehicle
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JP2015169115A (en) * 2014-03-06 2015-09-28 富士重工業株式会社 Control device of vehicle
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008202678A (en) * 2007-02-20 2008-09-04 Toyota Motor Corp Speed limiting device for vehicle
JP2009107451A (en) * 2007-10-29 2009-05-21 Toyota Motor Corp Vehicle traveling control device
EP2065281A1 (en) 2007-11-30 2009-06-03 Toyota Jidosha Kabushiki Kaisha Vehicle speed limiting system of motor vehicle
JP2009133432A (en) * 2007-11-30 2009-06-18 Toyota Motor Corp Vehicle speed limiting system of motor vehicle
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JP2012017717A (en) * 2010-07-09 2012-01-26 Toyota Motor Corp Vehicle control device
JP2015169115A (en) * 2014-03-06 2015-09-28 富士重工業株式会社 Control device of vehicle
JP2019194076A (en) * 2014-06-30 2019-11-07 エイディシーテクノロジー株式会社 Vehicle control device
JP2020023944A (en) * 2018-08-08 2020-02-13 株式会社デンソー Vehicle control device
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