JP2014091409A - Vehicular control device - Google Patents

Vehicular control device Download PDF

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JP2014091409A
JP2014091409A JP2012242866A JP2012242866A JP2014091409A JP 2014091409 A JP2014091409 A JP 2014091409A JP 2012242866 A JP2012242866 A JP 2012242866A JP 2012242866 A JP2012242866 A JP 2012242866A JP 2014091409 A JP2014091409 A JP 2014091409A
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negative pressure
pressure threshold
vehicle
threshold value
air conditioner
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JP5815494B2 (en
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Katsuto Kanbe
克仁 神戸
Junji Fukumoto
順士 福本
Jungo Kitamura
淳吾 喜多村
Masashige Osaki
正滋 大崎
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Honda Motor Co Ltd
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Honda Motor Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To enable an atmosphere inside a compartment to be maintained comfortable even in a case where an abnormality of seizure occurs in a state where a negative pressure value is in short of a given negative pressure threshold.SOLUTION: A vehicular control device 11 includes a negative-pressure obtainment part 45 for obtaining negative pressure of a booster 23; and a control part 47 for stopping operation of an air-conditioner 33 in a case where a negative pressure value Pvs obtained at the negative-pressure obtainment part 45 becomes smaller than a first negative-pressure threshold, while returning operation of the air-conditioner 33 in a case where the negative pressure value Pvs exceeds the first negative-pressure threshold after the negative pressure value Pvs has become smaller than the first negative-pressure threshold. In a case where the state of the negative pressure value Pvs being smaller than the first negative-pressure threshold continues more than a given standby period, the control part 47 switches to a second negative-pressure threshold that is smaller than the first negative-pressure threshold to use for returning the operation of the air-conditioner 33 from a stop state.

Description

本発明は、車両に搭載された内燃機関によって圧縮機が駆動される車両用空気調和装置（以下、エアコンという。）などの動作を制御する車両用制御装置に関する。   The present invention relates to a vehicle control device that controls the operation of a vehicle air conditioner (hereinafter referred to as an air conditioner) in which a compressor is driven by an internal combustion engine mounted on the vehicle.

一般に、内燃機関を備えた車両では、エアコンの冷却媒体を圧縮するための圧縮機が、内燃機関の駆動力によって駆動される。こうした車両では、圧縮機の駆動中に内燃機関の負荷が大きいと、内燃機関のストール（いわゆるエンスト）を生じてしまうことがある。   Generally, in a vehicle equipped with an internal combustion engine, a compressor for compressing a cooling medium of an air conditioner is driven by a driving force of the internal combustion engine. In such a vehicle, if the load on the internal combustion engine is large during driving of the compressor, the internal combustion engine may stall (so-called engine stall).

こうしたエンストの発生を抑制するために、特許文献１には、内燃機関の吸気負圧を用いてブレーキの操作力を倍力させる負圧倍力装置と、負圧倍力装置の負圧を検出する負圧センサとを備え、負圧センサによる負圧値と所定の負圧閾値の比較結果に基づいて、エアコンの動作を停止または復帰させるエアコン制御技術が開示されている。   In order to suppress the occurrence of the engine stall, Patent Document 1 discloses a negative pressure booster that boosts the operating force of the brake using the intake negative pressure of the internal combustion engine, and a negative pressure of the negative pressure booster. There is disclosed an air conditioner control technique that includes a negative pressure sensor that stops or restores the operation of an air conditioner based on a comparison result between a negative pressure value obtained by the negative pressure sensor and a predetermined negative pressure threshold.

特開２００３−１０４０４６号公報JP 2003-104046 A

しかしながら、特許文献１に係るエアコン制御技術では、仮に、負圧値が所定の負圧閾値に満たない状態（エアコンの動作は停止）で負圧値に固着異常が生じた場合、エアコンの動作を停止状態から復帰させることができなくなるため、車室内の雰囲気を快適に維持することができないおそれがあった。また、内燃機関の負荷が増大することによる一時的な発生負圧の低下が生じた場合にも、前記の課題を生じる。   However, in the air conditioner control technology according to Patent Document 1, if the negative pressure value is less than the predetermined negative pressure threshold value (the operation of the air conditioner is stopped) and the negative pressure value is stuck abnormally, the air conditioner operation is performed. Since it becomes impossible to return from the stop state, there is a possibility that the atmosphere in the passenger compartment cannot be maintained comfortably. In addition, the above-described problem occurs even when the generated negative pressure temporarily decreases due to an increase in the load of the internal combustion engine.

本発明は、前記実情に鑑みてなされたものであり、例えば、負圧値が所定の負圧閾値に満たない状態で固着異常が生じた場合であっても、車室内の雰囲気を快適に維持することができるようにすることを目的とする。   The present invention has been made in view of the above circumstances, and for example, even when a sticking abnormality occurs in a state in which the negative pressure value is less than a predetermined negative pressure threshold, the atmosphere in the passenger compartment is comfortably maintained. The purpose is to be able to.

上記目的を達成するために、（１）に係る発明は、車両に搭載された内燃機関の吸気負圧を用いて制動に係る操作力を倍力させる負圧倍力装置の負圧を取得する負圧取得部と、前記負圧取得部による負圧値が第１の負圧閾値と比べて小さくなった場合に、前記内燃機関の駆動力によって駆動される圧縮機を有するエアコンの動作を停止させる一方、前記負圧値が前記第１の負圧閾値と比べて小さくなった後に当該第１の負圧閾値と比べて大きくなった場合に、前記エアコンの動作を復帰させる制御を行う制御部と、を備え、前記制御部は、前記負圧値が前記第１の負圧閾値と比べて小さくなっている状態が所定の待機時間を超えて継続した場合、当該第１の負圧閾値と比べて小さい第２の負圧閾値を切り替えて用い、当該第２の負圧閾値に基づいて、前記エアコンの動作を停止した状態から復帰させる制御を行う、ことを最も主要な特徴とする。   In order to achieve the above object, the invention according to (1) obtains the negative pressure of a negative pressure booster that boosts the operating force related to braking using the intake negative pressure of an internal combustion engine mounted on a vehicle. Stops the operation of an air conditioner having a negative pressure acquisition unit and a compressor driven by the driving force of the internal combustion engine when a negative pressure value by the negative pressure acquisition unit is smaller than a first negative pressure threshold On the other hand, when the negative pressure value becomes smaller than the first negative pressure threshold value and then becomes larger than the first negative pressure threshold value, a control unit that performs control to restore the operation of the air conditioner And when the state in which the negative pressure value is smaller than the first negative pressure threshold value continues beyond a predetermined waiting time, the control unit determines that the first negative pressure threshold value is A second negative pressure threshold value that is smaller than the second negative pressure threshold value is used by switching. There are, performs control to return from the state of stopping the operation of the air conditioner, the most important feature that.

（１）に係る発明によれば、第１の負圧閾値と比べて小さい状態で負圧値に固着異常が生じた場合であっても、第１の負圧閾値と比べて小さい第２の負圧閾値を切り替えて用い、エアコンの動作を停止した状態から復帰させるため、車室内の雰囲気を快適に維持することができる。   According to the invention according to (1), even when a sticking abnormality occurs in the negative pressure value in a state that is smaller than the first negative pressure threshold, the second smaller than the first negative pressure threshold. Since the negative pressure threshold is switched and used, and the operation of the air conditioner is restored from the stopped state, the atmosphere in the passenger compartment can be maintained comfortably.

また、（２）に係る発明は、（１）に記載の車両用制御装置であって、前記制御部は、前記負圧値が前記第１の負圧閾値と比べて小さくなった後に当該第１の負圧閾値と比べて大きくなるに至るまでの間、前記第２の負圧閾値を用いて前記エアコンの動作を停止または復帰させる制御を行う、ことを特徴とする。   The invention according to (2) is the vehicular control device according to (1), in which the control unit performs the first operation after the negative pressure value becomes smaller than the first negative pressure threshold. Control is performed to stop or restore the operation of the air conditioner using the second negative pressure threshold until it becomes larger than the negative pressure threshold of 1.

（２）に係る発明によれば、負圧値が第１の負圧閾値を超える適正範囲に戻るまでの間、第２の閾値を用いてエアコンの動作を停止または復帰させる制御を行うため、エアコンの動作を暫定的に復帰させることができる。これにより、車室内の雰囲気を可及的に快適に維持することができる。   According to the invention according to (2), in order to perform control to stop or return the operation of the air conditioner using the second threshold value until the negative pressure value returns to an appropriate range exceeding the first negative pressure threshold value. The operation of the air conditioner can be temporarily restored. Thereby, the atmosphere in a vehicle interior can be maintained as comfortably as possible.

また、（３）に係る発明は、（１）または（２）に記載の車両用制御装置であって、前記第２の負圧閾値は、前記待機時間が経過した時点の前記負圧値と比べて小さくなることを考慮して可変設定される、ことを特徴とする。   The invention according to (3) is the vehicle control device according to (1) or (2), in which the second negative pressure threshold is the negative pressure value at the time when the standby time has elapsed. It is characterized in that it is variably set in consideration of a smaller size.

（３）に係る発明によれば、所定の待機時間が経過した時点の負圧値と比べて小さくなることを考慮して可変設定される第２の負圧閾値を用いてエアコンの動作を停止または復帰させる制御を行うため、エアコンの動作を確実に復帰させることができる。   According to the invention according to (3), the operation of the air conditioner is stopped using the second negative pressure threshold that is variably set in consideration of being smaller than the negative pressure value at the time when the predetermined standby time has elapsed. Alternatively, since the control for returning is performed, the operation of the air conditioner can be reliably returned.

また、（４）に係る発明は、（１）〜（３）のいずれか一項に記載の車両用制御装置であって、前記第２の負圧閾値は、当該第２の負圧閾値を用いて前記エアコンの動作を停止または復帰させる制御を行っている場合において、前記車両の車輪がロック傾向となってＡＢＳ装置が作動するまでの間、前記制動に係る操作力を継続して倍力可能となることを考慮して設定される、ことを特徴とする。   Moreover, the invention which concerns on (4) is a vehicle control apparatus as described in any one of (1)-(3), Comprising: The said 2nd negative pressure threshold value is the said 2nd negative pressure threshold value. When the control for stopping or returning the operation of the air conditioner is performed, the operation force related to the braking is continuously boosted until the wheels of the vehicle tend to be locked and the ABS device is activated. It is set in consideration of being possible.

（４）に係る発明によれば、車両の車輪がロック傾向となってＡＢＳ装置が作動するまでの間、制動に係る操作力を継続して倍力可能となることを考慮して可変設定される第２の負圧閾値を用いてエアコンの動作を停止または復帰させる制御を行うため、第２の負圧閾値でも十分な倍力が確保される結果として、制動時における運転者の負担を軽減することができる。   According to the invention according to (4), it is variably set in consideration that the operation force related to braking can be continuously boosted until the wheels of the vehicle become locked and the ABS device operates. Since the control of stopping or returning the operation of the air conditioner is performed using the second negative pressure threshold, sufficient boosting is ensured even with the second negative pressure threshold, thereby reducing the burden on the driver during braking. can do.

また、（５）に係る発明は、（１）〜（４）のいずれか一項に記載の車両用制御装置であって、前記制御部は、前記負圧値が前記第１の負圧閾値または前記第２の負圧閾値のいずれかと比べて小さく、かつ、前記車両の制動に係る操作量が所定の閾値を超えた場合、当該制動に係る操作量に応じて、当該車両の制動を補助する制動補助装置を作動させる制御を行う、ことを特徴とする。   Moreover, the invention which concerns on (5) is a vehicle control apparatus as described in any one of (1)-(4), Comprising: The said negative pressure value is a said 1st negative pressure threshold value as for the said control part. Alternatively, when the operation amount related to braking of the vehicle exceeds a predetermined threshold value, the braking of the vehicle is assisted according to the operation amount related to the braking. It is characterized by performing control for operating a braking assist device.

（５）に係る発明によれば、車室内の雰囲気を快適に維持する効果に加えて、負圧値が第１の負圧閾値または第２の負圧閾値のいずれかと比べて小さく、かつ、車両の制動に係る操作量が所定の閾値を超えた場合であっても、適正な制動力を確保することができる。   According to the invention according to (5), in addition to the effect of maintaining a comfortable interior atmosphere, the negative pressure value is smaller than either the first negative pressure threshold value or the second negative pressure threshold value, and Even when the amount of operation related to braking of the vehicle exceeds a predetermined threshold, an appropriate braking force can be ensured.

本発明によれば、負圧値が所定の負圧閾値に満たない状態で固着異常が生じた場合であっても、車室内の雰囲気を快適に維持することができる。   According to the present invention, the atmosphere in the passenger compartment can be maintained comfortably even when a sticking abnormality occurs in a state where the negative pressure value is less than the predetermined negative pressure threshold.

本発明の実施形態に係る車両用制御装置の機能ブロック図である。It is a functional block diagram of the control device for vehicles concerning the embodiment of the present invention. 本発明の実施形態に係る車両用制御装置の動作説明に供する状態遷移図である。It is a state transition diagram with which it uses for operation | movement description of the control apparatus for vehicles which concerns on embodiment of this invention. ブースタの負圧室に係る負圧値の時間推移と、第１および第２の負圧閾値と、エアコンのオンオフ動作と、インマニ圧の時間推移との関係を表す説明図である。It is explanatory drawing showing the relationship of the time transition of the negative pressure value which concerns on the negative pressure chamber of a booster, the 1st and 2nd negative pressure threshold value, the on-off operation of an air-conditioner, and the time transition of an intake manifold pressure.

以下、本発明の実施形態に係る車両用制御装置１１について、図面を参照して詳細に説明する。
なお、本発明の実施形態に係る説明において、“負圧”とは、大気圧を基準として真空側の圧力をいう。また、“負圧”の程度を表現する際において、大気圧に近い側の負圧を“小さい負圧”と、真空に近い側の負圧を“大きい負圧”と、それぞれ表記することとする。 Hereinafter, a vehicle control device 11 according to an embodiment of the present invention will be described in detail with reference to the drawings.
In the description of the embodiment of the present invention, “negative pressure” refers to the pressure on the vacuum side with reference to atmospheric pressure. When expressing the degree of “negative pressure”, the negative pressure near the atmospheric pressure is expressed as “small negative pressure”, and the negative pressure near the vacuum is expressed as “large negative pressure”. To do.

〔本発明の実施形態に係る車両用制御装置１１の構成〕
はじめに、本発明の実施形態に係る車両用制御装置１１の構成について、図１を参照して説明する。図１は、本発明の実施形態に係る車両用制御装置１１の機能ブロック図である。 [Configuration of the vehicle control device 11 according to the embodiment of the present invention]
First, the configuration of the vehicle control device 11 according to the embodiment of the present invention will be described with reference to FIG. FIG. 1 is a functional block diagram of a vehicle control device 11 according to an embodiment of the present invention.

本発明の実施形態に係る車両用制御装置１１は、レシプロエンジンなどの内燃機関１３やブレーキ装置１５とともに、不図示の車両に設けられている。   A vehicle control device 11 according to an embodiment of the present invention is provided in a vehicle (not shown) together with an internal combustion engine 13 such as a reciprocating engine and a brake device 15.

内燃機関１３には、図１に示すように、内燃機関１３に空気および燃料を導入するためのインテークマニホールド（吸気管）１７と、内燃機関１３からの排気ガスを不図示のマフラーへと導くエキゾーストパイプ（排気管）１９と、が連通接続されている。   As shown in FIG. 1, the internal combustion engine 13 includes an intake manifold (intake pipe) 17 for introducing air and fuel into the internal combustion engine 13, and an exhaust that guides exhaust gas from the internal combustion engine 13 to a muffler (not shown). A pipe (exhaust pipe) 19 is connected in communication.

ブレーキ装置１５は、図１に示すように、ブレーキペダル２１と、本発明の“負圧倍力装置”に相当するブースタ２３と、マスタシリンダ２５と、を含んで構成されている。   As shown in FIG. 1, the brake device 15 includes a brake pedal 21, a booster 23 corresponding to the “negative pressure booster” of the present invention, and a master cylinder 25.

ブレーキペダル２１は、車両を制動しようとする運転者が踏み込み操作する際に用いられる操作部材である。ブースタ２３は、内燃機関１３の吸気負圧を用いて、運転者がブレーキペダル２１を踏み込む力（制動に係る操作力）を倍力してマスタシリンダ２５に入力する機能を有する。マスタシリンダ２５は、ブースタ２３で倍力された制動に係る操作力を油圧に変換して、各車輪に対してブレーキ液圧を発生させる油圧系統（不図示）に入力する機能を有する。   The brake pedal 21 is an operation member used when a driver who tries to brake the vehicle performs a stepping operation. The booster 23 has a function of using the intake negative pressure of the internal combustion engine 13 to boost and input to the master cylinder 25 the force by which the driver depresses the brake pedal 21 (operation force related to braking). The master cylinder 25 has a function of converting an operation force related to braking boosted by the booster 23 into hydraulic pressure and inputting the hydraulic pressure to a hydraulic system (not shown) that generates brake fluid pressure for each wheel.

ブレーキペダル２１には、例えば、そのアーム２１ａの回転支軸部２１ｂに、ブレーキセンサ２６が設けられている。ブレーキセンサ２６は、ブレーキペダル２１の操作量および操作方向を検出し、検出したブレーキ操作信号を、車両用制御装置１１に送る機能を有する。   The brake pedal 21 is provided with, for example, a brake sensor 26 on the rotation shaft portion 21b of the arm 21a. The brake sensor 26 has a function of detecting an operation amount and an operation direction of the brake pedal 21 and sending the detected brake operation signal to the vehicle control device 11.

インテークマニホールド（吸気管）１７と、ブースタ２３の負圧室２３ａとの間は、配管２７を介して連通接続されている。この配管２７の途中には、チェックバルブ２９、および、負圧センサ３１が設けられている。   The intake manifold (intake pipe) 17 and the negative pressure chamber 23 a of the booster 23 are connected to each other via a pipe 27. A check valve 29 and a negative pressure sensor 31 are provided in the middle of the pipe 27.

１方向弁であるチェックバルブ２９は、負圧室２３ａの内圧であるブースタ圧が、インテークマニホールド（吸気管）１７に生じるインマニ圧と比べて大きい場合に閉止動作することで、ブースタ圧を大きい負圧に維持する一方、ブースタ圧がインマニ圧と比べて小さい場合に開放動作することで、ブースタ２３にインマニ圧を導入し、ブースタ圧をインマニ圧と同等の大きさにする機能を有する。   The check valve 29, which is a one-way valve, closes when the booster pressure, which is the internal pressure of the negative pressure chamber 23a, is larger than the intake manifold pressure generated in the intake manifold (intake pipe) 17, thereby increasing the booster pressure to a large negative value. While maintaining the pressure, the opening operation is performed when the booster pressure is smaller than the intake manifold pressure, so that the intake manifold pressure is introduced into the booster 23 and the booster pressure has the same function as the intake manifold pressure.

負圧センサ３１は、前記配管２７のうち、チェックバルブ２９と負圧室２３ａの間に設けられている。負圧センサ３１は、負圧室２３ａの内圧であるブースタ圧を検出し、検出したブースタ圧信号（負圧値）Ｐｖｓを、車両用制御装置１１に送る機能を有する。   The negative pressure sensor 31 is provided between the check valve 29 and the negative pressure chamber 23 a in the pipe 27. The negative pressure sensor 31 has a function of detecting a booster pressure that is an internal pressure of the negative pressure chamber 23 a and sending the detected booster pressure signal (negative pressure value) Pvs to the vehicle control device 11.

車両用制御装置１１には、図１に示すように、エアコン３３と、ＶＳＡ（Vehicle Stability Assist）装置４１とが接続されている。   As shown in FIG. 1, an air conditioner 33 and a VSA (Vehicle Stability Assist) device 41 are connected to the vehicle control device 11.

エアコン３３は、予め設定された温度の空気を車室内に向けて吹き出すことにより、車室内の雰囲気を調節する機能を有する。エアコン３３は、公知の冷凍サイクルを構成する、蒸発器３７、圧縮機３９、凝縮器４１、膨張弁４３などの部材を含んで構成されている。蒸発器３７は、低温・低圧の液体冷媒を気化・膨張させて吸熱する機能を有する。圧縮機３９は、低温・低圧の気体冷媒を圧縮することで高温・高圧の気体冷媒を吐出する機能を有する。凝縮器４１は、圧縮機３９から吐出された高温・高圧の気体冷媒を冷却して熱を奪い液化する機能を有する。膨張弁４３は、高温・高圧の液体冷媒を急速に断熱膨張させることで温度と圧力を低下させる機能を有する。こうして低温・低圧となった液体冷媒は、蒸発器３７へと戻される。   The air conditioner 33 has a function of adjusting the atmosphere in the vehicle interior by blowing out air of a preset temperature toward the vehicle interior. The air conditioner 33 includes members such as an evaporator 37, a compressor 39, a condenser 41, and an expansion valve 43 that constitute a known refrigeration cycle. The evaporator 37 has a function of absorbing heat by vaporizing and expanding a low-temperature and low-pressure liquid refrigerant. The compressor 39 has a function of discharging a high-temperature / high-pressure gas refrigerant by compressing the low-temperature / low-pressure gas refrigerant. The condenser 41 has a function of cooling the high-temperature and high-pressure gaseous refrigerant discharged from the compressor 39 to remove heat and liquefy it. The expansion valve 43 has a function of reducing temperature and pressure by rapidly adiabatically expanding a high-temperature / high-pressure liquid refrigerant. The liquid refrigerant that has become low temperature and low pressure in this manner is returned to the evaporator 37.

ＶＳＡ装置３５は、目標ヨーレートと実際のヨーレートとの偏差やブレーキ液圧などに基づいて、車両の挙動安定化を支援する機能を有する。   The VSA device 35 has a function of supporting the stabilization of the behavior of the vehicle based on the deviation between the target yaw rate and the actual yaw rate, the brake fluid pressure, and the like.

本発明の実施形態に係る車両用制御装置１１は、図１に示すように、負圧取得部４５と、制御部４７とを備えて構成されている。   As shown in FIG. 1, the vehicle control device 11 according to the embodiment of the present invention includes a negative pressure acquisition unit 45 and a control unit 47.

負圧取得部４５は、負圧センサ３１からのブースタ圧に係る負圧値Ｐｖｓを取得する機能を有する。   The negative pressure acquisition unit 45 has a function of acquiring the negative pressure value Pvs related to the booster pressure from the negative pressure sensor 31.

制御部４７は、負圧センサ３１からのブースタ圧に係る負圧値Ｐｖｓが、第１の負圧閾値Ｐｔｈ１と比べて小さくなった場合に、エアコン３３の動作を停止させる一方、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなった後に第１の負圧閾値Ｐｔｈ１と比べて大きくなった場合に、エアコン３３の動作を復帰させる制御を行う機能を有する。   When the negative pressure value Pvs related to the booster pressure from the negative pressure sensor 31 becomes smaller than the first negative pressure threshold value Pth1, the control unit 47 stops the operation of the air conditioner 33, while the negative pressure value Pvs. Has a function of performing control to restore the operation of the air conditioner 33 when it becomes smaller than the first negative pressure threshold value Pth1 after becoming smaller than the first negative pressure threshold value Pth1.

また、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなっている状態が所定の待機時間Ｔｔｈ_ｃｈｇを超えて継続した場合、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を切り替えて用い、これをもって、エアコン３３の動作を停止した状態から復帰させる制御を行う。   In addition, when the state in which the negative pressure value Pvs is smaller than the first negative pressure threshold value Pth1 continues beyond the predetermined standby time Tth_chg, the control unit 47 compares the first negative pressure threshold value Pth1 with the first negative pressure threshold value Pth1. The small second negative pressure threshold value Pth2 is switched and used, and with this, control for returning the operation of the air conditioner 33 from the stopped state is performed.

第１の負圧閾値Ｐｔｈ１は、ブースタ２３の負圧室２３ａの負圧が、車両の制動に必要な制動力を得ることができるに足る負圧であることを考慮して予め設定される。具体的には、例えば、第１の負圧閾値Ｐｔｈ１は、制御部４７が有する記憶領域に、必要に応じて読み出し可能に書き込まれている。   The first negative pressure threshold value Pth1 is set in advance considering that the negative pressure in the negative pressure chamber 23a of the booster 23 is a negative pressure sufficient to obtain a braking force necessary for braking the vehicle. Specifically, for example, the first negative pressure threshold value Pth1 is written in a storage area of the control unit 47 so as to be readable as necessary.

一方、第２の負圧閾値Ｐｔｈ２は、前記所定の待機時間Ｔｔｈ_ｃｈｇが経過した時刻（図３の時刻ｔ３参照）における負圧値Ｐｖｓに基づいて可変設定される。具体的には、例えば、制御部４７は、時刻ｔ３（図３参照）における負圧値Ｐｖｓを基準として、大気圧側へ所定値Ｐｍｇだけシフトさせることを考慮して、第２の負圧閾値Ｐｔｈ２を可変設定する。   On the other hand, the second negative pressure threshold value Pth2 is variably set based on the negative pressure value Pvs at the time when the predetermined standby time Tth_chg has elapsed (see time t3 in FIG. 3). Specifically, for example, the control unit 47 takes into consideration that the negative pressure value Pvs at time t3 (see FIG. 3) is used as a reference and shifts to the atmospheric pressure side by a predetermined value Pmg. Pth2 is variably set.

第２の負圧閾値Ｐｔｈ２を、前記のように時刻ｔ３（図３参照）における負圧値Ｐｖｓを基準として大気圧側へ可変設定するに際し、運転者による制動操作に支障を来すことがあってはならない。そこで、第２の負圧閾値Ｐｔｈ２には、下限値が設定される。第２の負圧閾値Ｐｔｈ２に係る下限値は、第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行っている場合において、車両の車輪がロック傾向となってＡＢＳ（Antilock Brake System）装置が作動するまでの間、制動に係る操作力を継続して倍力可能となることを考慮して適宜設定される。   When the second negative pressure threshold value Pth2 is variably set to the atmospheric pressure side with reference to the negative pressure value Pvs at time t3 (see FIG. 3) as described above, the driver's braking operation may be hindered. must not. Therefore, a lower limit value is set for the second negative pressure threshold Pth2. The lower limit value related to the second negative pressure threshold value Pth2 is the ABS when the wheel of the vehicle tends to be locked when the control of stopping or returning the operation of the air conditioner 33 is performed using the second negative pressure threshold value Pth2. (Antilock Brake System) It is set as appropriate in consideration that the operation force related to braking can be continuously increased until the device is activated.

また、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなった後に第１の負圧閾値Ｐｔｈ１と比べて大きくなるに至るまでの間、第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行う。   Further, the control unit 47 sets the second negative pressure threshold value until the negative pressure value Pvs becomes larger than the first negative pressure threshold value Pth1 after the negative pressure value Pvs becomes smaller than the first negative pressure threshold value Pth1. Control for stopping or returning the operation of the air conditioner 33 is performed using Pth2.

さらに、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１または第２の負圧閾値Ｐｔｈ２のいずれかと比べて小さく、かつ、ブレーキセンサ２６により検出される車両の制動に係る操作量が所定の閾値を超えた場合、当該制動に係る操作量に応じて、車両の制動を補助するＶＳＡ装置（本発明の“制動補助装置”に相当する。）３５を作動させる制御を行う。   Further, the control unit 47 determines that the negative pressure value Pvs is smaller than either the first negative pressure threshold value Pth1 or the second negative pressure threshold value Pth2, and the operation amount related to braking of the vehicle detected by the brake sensor 26. When the value exceeds a predetermined threshold value, control is performed to activate the VSA device 35 (corresponding to the “braking assist device” of the present invention) 35 that assists the braking of the vehicle in accordance with the operation amount related to the braking.

車両の制動に係る操作量に関する前記所定の閾値は、例えば、運転者が急ブレーキをかけたときのブレーキペダル２１の踏み込み操作量（車両の制動に係る操作量）を考慮して適宜設定される。   The predetermined threshold value related to the operation amount related to vehicle braking is appropriately set in consideration of, for example, the operation amount of the brake pedal 21 (operation amount related to vehicle braking) when the driver suddenly applies the brake. .

本発明の実施形態に係る車両用制御装置１１は、例えば、ＣＰＵ（Central Processing Unit）、ＲＯＭ（Read Only Memory）、ＲＡＭ（Random Access Memory）などを備える不図示のマイクロコンピュータ（以下“マイコン”という。）により構成される。このマイコンは、ＲＯＭに記憶されているプログラムを読み出して実行し、車両用制御装置１１が有する負圧取得機能、エアコン制御機能、制動制御機能を含む各種機能に係る実行制御を行うように動作する。   A vehicle control device 11 according to an embodiment of the present invention includes a microcomputer (not shown) (hereinafter referred to as “microcomputer”) including, for example, a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), and the like. .). The microcomputer reads and executes a program stored in the ROM, and operates to perform execution control related to various functions including a negative pressure acquisition function, an air conditioner control function, and a braking control function of the vehicle control device 11. .

前記のように構成された本発明の実施形態に係る車両用制御装置１１は、エアコン制御機能、または、制動制御機能を有効にするか、または、無効にするかを選択的に設定する際に用いられる切替スイッチ（不図示）を備えている。以下では、特に断らない限り、エアコン制御機能、および、制動制御機能を有効にする切替スイッチの設定がなされているものとして説明を進める。   When the vehicle control device 11 according to the embodiment of the present invention configured as described above selectively sets whether to enable or disable the air conditioner control function or the braking control function. A changeover switch (not shown) used is provided. In the following description, unless otherwise specified, the description will proceed assuming that the changeover switch for enabling the air conditioner control function and the brake control function is set.

〔本発明の実施形態に係る車両用制御装置１１の動作〕
次に、本発明の実施形態に係る車両用制御装置１１の動作について、図２および図３を参照して説明する。図２は、本発明の実施形態に係る車両用制御装置の動作説明に供する状態遷移図である。図３は、ブースタ２３の負圧室２３ａに係る負圧値Ｐｖｓの時間推移と、第１および第２の負圧閾値Ｐｔｈ１，Ｐｔｈ２と、エアコン３３のオンオフ動作と、インマニ圧の時間推移との関係を表す説明図である。 [Operation of the vehicle control device 11 according to the embodiment of the present invention]
Next, operation | movement of the control apparatus 11 for vehicles which concerns on embodiment of this invention is demonstrated with reference to FIG. 2 and FIG. FIG. 2 is a state transition diagram for explaining the operation of the vehicle control apparatus according to the embodiment of the present invention. FIG. 3 shows the time transition of the negative pressure value Pvs related to the negative pressure chamber 23a of the booster 23, the first and second negative pressure thresholds Pth1 and Pth2, the on / off operation of the air conditioner 33, and the time transition of the intake manifold pressure. It is explanatory drawing showing a relationship.

イグニッションスイッチ（不図示）がオンされると、車両用制御装置１１が起動し、図２に示すステップＳ１１において、車両用制御装置１１に対し、負圧閾値Ｐｔｈとして、第１の負圧閾値Ｐｔｈ１（図３参照）が初期設定される。   When an ignition switch (not shown) is turned on, the vehicle control device 11 is activated, and the first negative pressure threshold value Pth1 is set as the negative pressure threshold value Pth to the vehicle control device 11 in step S11 shown in FIG. (See FIG. 3) is initialized.

図２に示すノードＮ１は、車両用制御装置１１において、通常時エアコンオンの状態を表している。通常時エアコンオンの状態とは、負圧値Ｐｖｓが次述の継続条件を満たすときに維持される状態である。すなわち、通常時エアコンオンの状態は、図２に示すエッジＥ１１において、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて大きいか、または、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１以下となった場合（図３の時刻ｔ１参照）において、その継続時間Ｔｗｔがエアコンカットオフ時間Ｔａｃ_ｏｆｆ（図３参照）を超えない旨の継続条件を満たすときに、その（通常時エアコンオンの）状態が維持される。   A node N1 illustrated in FIG. 2 represents a state in which the air conditioner is normally on in the vehicle control device 11. The normal air conditioner on state is a state maintained when the negative pressure value Pvs satisfies the following continuation condition. That is, in the normal air conditioner ON state, at the edge E11 shown in FIG. 2, the negative pressure value Pvs is larger than the first negative pressure threshold value Pth1, or the negative pressure value Pvs is the first negative pressure threshold value Pth1. When the following condition is satisfied (see time t1 in FIG. 3), when the continuation condition that the continuation time Twt does not exceed the air conditioner cut-off time Tac_off (see FIG. 3) is satisfied (the normal conditioner is turned on) State is maintained.

図２に示すノードＮ２は、車両用制御装置１１において、通常時エアコンオフの状態を表している。通常時エアコンオフの状態とは、負圧値Ｐｖｓが前記継続条件を満たさないときに、通常時エアコンオンの状態から遷移される状態である。すなわち、通常時エアコンオンの状態は、図２に示すエッジＥ１２において、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１以下となった場合において、その継続時間Ｔｗｔがエアコンカットオフ時間Ｔａｃ_ｏｆｆを超えたときに、通常時エアコンオフの状態へと遷移（図３の時刻ｔ２参照）する。
なお、エアコンカットオフ時間Ｔａｃ_ｏｆｆは、例えば内燃機関１３による発生負圧が低下して十分な負圧が確保できないおそれがある場合などには、これを省略することができる。この場合、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１以下となったときに、通常時エアコンオンの状態から通常時エアコンオフの状態へと遷移することになる。 A node N2 shown in FIG. 2 represents a state in which the air conditioner is normally off in the vehicle control device 11. The normal air conditioner off state is a state where the normal air conditioner on state is transitioned when the negative pressure value Pvs does not satisfy the continuation condition. That is, in the normal air conditioner ON state, when the negative pressure value Pvs becomes equal to or less than the first negative pressure threshold value Pth1 at the edge E12 shown in FIG. 2, the duration Twt exceeds the air conditioner cut-off time Tac_off. Sometimes, transition to the normal air conditioner off state (see time t2 in FIG. 3).
Note that the air conditioner cut-off time Tac_off can be omitted, for example, when the negative pressure generated by the internal combustion engine 13 is lowered and a sufficient negative pressure cannot be secured. In this case, when the negative pressure value Pvs becomes equal to or less than the first negative pressure threshold value Pth1, a transition from the normal air conditioner on state to the normal air conditioner off state is made.

ただし、通常時エアコンオフの状態は、図２に示すエッジＥ１３において、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて大きくなったときに、通常時エアコンオンの状態へと遷移する。   However, the normal air conditioner off state transitions to the normal air conditioner on state when the negative pressure value Pvs becomes larger than the first negative pressure threshold value Pth1 at the edge E13 shown in FIG.

要するに、負圧値Ｐｖｓに固着異常が生じていない通常時には、車両用制御装置１１において、図２に示すノードＮ１とノードＮ２間における状態の遷移（図２に示すエッジＥ１２，Ｅ１３参照）を繰り返す。   In short, at the normal time when the negative pressure value Pvs is not abnormally fixed, the vehicular control device 11 repeats the state transition between the node N1 and the node N2 shown in FIG. 2 (see edges E12 and E13 shown in FIG. 2). .

負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１以下となった場合において、その継続時間Ｔｗｔが閾値切替時間Ｔｔｈ_ｃｈｇ（図３参照）を超えると（図３の時刻ｔ３参照）、図２に示すステップＳ１２において、車両用制御装置１１に対し、負圧閾値Ｐｔｈとして、第２の負圧閾値Ｐｔｈ２（図３参照）が切替設定される。これにより、図３に示すように、負圧閾値Ｐｔｈが、第１の負圧閾値Ｐｔｈ１から、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２へと切替えられる。   When the negative pressure value Pvs becomes equal to or less than the first negative pressure threshold value Pth1, if the duration Twt exceeds the threshold switching time Tth_chg (see FIG. 3) (see time t3 in FIG. 3), the steps shown in FIG. In S12, the second negative pressure threshold value Pth2 (see FIG. 3) is switched for the vehicle control device 11 as the negative pressure threshold value Pth. Thereby, as shown in FIG. 3, the negative pressure threshold value Pth is switched from the first negative pressure threshold value Pth1 to the second negative pressure threshold value Pth2 which is smaller than the first negative pressure threshold value Pth1.

図２に示すノードＮ３は、車両用制御装置１１において、異常時エアコンオンの状態を表している。異常時エアコンオンの状態とは、例えば、負圧値Ｐｖｓに固着異常が生じたときに陥る状態であって、負圧値Ｐｖｓが第２の負圧閾値Ｐｔｈ２と比べて大きくなったときに、通常時エアコンオフの状態から遷移される状態である。すなわち、通常時エアコンオフの状態は、図２に示すエッジＥ１４において、負圧値Ｐｖｓが第２の負圧閾値Ｐｔｈ２と比べて大きくなったときに、異常時エアコンオンの状態へと遷移（図３の時刻ｔ３参照）する。   A node N3 illustrated in FIG. 2 represents a state in which the air conditioner is on during the abnormality in the vehicle control device 11. The abnormal air conditioner on state is a state that occurs when, for example, a sticking abnormality occurs in the negative pressure value Pvs, and when the negative pressure value Pvs becomes larger than the second negative pressure threshold value Pth2, This is a state in which the air conditioner is transitioned from the normal state. That is, the normal air conditioner off state transitions to the abnormal air conditioner on state when the negative pressure value Pvs becomes larger than the second negative pressure threshold value Pth2 at the edge E14 shown in FIG. 3 at time t3).

図２に示すノードＮ４は、車両用制御装置１１において、異常時エアコンオフの状態を表している。異常時エアコンオフの状態とは、例えば、負圧値Ｐｖｓに固着異常が生じたときに陥る状態であって、負圧値Ｐｖｓが第２の負圧閾値Ｐｔｈ２以下となったときに、異常時エアコンオンの状態から遷移される状態である。すなわち、異常時エアコンオンの状態は、図２に示すエッジＥ１５において、負圧値Ｐｖｓが第２の負圧閾値Ｐｔｈ２以下となったときに、異常時エアコンオフの状態へと遷移する。   A node N4 shown in FIG. 2 represents a state in which the air conditioner is off at the time of abnormality in the vehicle control device 11. The abnormal air conditioner off state is, for example, a state that occurs when a sticking abnormality occurs in the negative pressure value Pvs, and when the negative pressure value Pvs becomes equal to or less than the second negative pressure threshold value Pth2, This is a state where the air conditioner is turned on. That is, the abnormal air conditioner on state transitions to the abnormal air conditioner off state when the negative pressure value Pvs becomes equal to or lower than the second negative pressure threshold value Pth2 at the edge E15 shown in FIG.

ただし、異常時エアコンオフの状態は、図２に示すエッジＥ１６において、負圧値Ｐｖｓが第２の負圧閾値Ｐｔｈ２と比べて大きくなったときに、異常時エアコンオンの状態へと遷移する。   However, the abnormal air conditioner off state transitions to the abnormal air conditioner on state when the negative pressure value Pvs becomes larger than the second negative pressure threshold value Pth2 at the edge E16 shown in FIG.

例えば、負圧値Ｐｖｓに固着異常が生じている異常時には、車両用制御装置１１において、暫定的に設定される第２の負圧閾値Ｐｔｈ２を用いて、図２に示すノードＮ３とノードＮ４間における状態の遷移（図２に示すエッジＥ１５，Ｅ１６参照）を繰り返す。   For example, when the negative pressure value Pvs is abnormal, the vehicle control device 11 uses the second negative pressure threshold value Pth2 tentatively set between the node N3 and the node N4 shown in FIG. The state transition at (see edges E15 and E16 shown in FIG. 2) is repeated.

なお、異常時エアコンオンの状態は、図２に示すエッジＥ１７において、エッジＥ１３と同様に、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて大きくなったときに、通常時エアコンオンの状態へと遷移する。   It should be noted that the air conditioner on state at the time of abnormality is the same as that at the edge E17 shown in FIG. 2 when the negative pressure value Pvs becomes larger than the first negative pressure threshold value Pth1, similarly to the edge E13. Transition to the state.

〔本発明の実施形態に係る車両用制御装置１１の作用効果〕
次に、本発明の実施形態に係る車両用制御装置１１の作用効果について説明する。
本発明の実施形態に係る車両用制御装置１１は、車両に搭載された内燃機関１３の吸気負圧を用いて制動に係る操作力を倍力させるブースタ（負圧倍力装置）２３の負圧を取得する負圧取得部４５と、負圧取得部４５による負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなった場合に、内燃機関１３の駆動力によって駆動される圧縮機３９を有するエアコン３３の動作を停止させる一方、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなった後に第１の負圧閾値Ｐｔｈ１と比べて大きくなった場合に、エアコン３３の動作を復帰させる制御を行う制御部４７と、を備える。 [Operation and Effect of the Vehicle Control Device 11 According to the Embodiment of the Present Invention]
Next, the effect of the vehicle control device 11 according to the embodiment of the present invention will be described.
The vehicle control device 11 according to the embodiment of the present invention uses a negative pressure of a booster (negative pressure booster) 23 that boosts an operating force related to braking using an intake negative pressure of an internal combustion engine 13 mounted on the vehicle. And the compressor 39 driven by the driving force of the internal combustion engine 13 when the negative pressure value Pvs by the negative pressure acquisition unit 45 is smaller than the first negative pressure threshold value Pth1. The operation of the air conditioner 33 is stopped when the negative pressure value Pvs becomes smaller than the first negative pressure threshold value Pth1 and then becomes larger than the first negative pressure threshold value Pth1. And a control unit 47 that performs control to restore the.

制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなっている状態が所定の待機時間（閾値切替時間Ｔｔｈ_ｃｈｇ）を超えて継続した場合、図３に示すように、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用い、この第２の負圧閾値Ｐｔｈ２に基づいて、エアコン３３の動作を停止した状態から復帰させる制御を行う。   When the state where the negative pressure value Pvs is smaller than the first negative pressure threshold value Pth1 continues beyond a predetermined standby time (threshold switching time Tth_chg), the control unit 47, as shown in FIG. A second negative pressure threshold value Pth2 that is smaller than the first negative pressure threshold value Pth1 is used, and based on the second negative pressure threshold value Pth2, control for returning the operation of the air conditioner 33 from the stopped state is performed.

本発明の実施形態に係る車両用制御装置１１によれば、第１の負圧閾値Ｐｔｈ１と比べて小さい状態で負圧値Ｐｖｓに固着異常が生じた場合であっても、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用い、この第２の負圧閾値Ｐｔｈ２に基づいて、エアコン３３の動作を停止した状態から復帰させるため、車室内の雰囲気を快適に維持することができる。
なお、内燃機関１３の負荷が増大することによる一時的な発生負圧の低下が生じた場合にも、前記と同様に、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用い、この第２の負圧閾値Ｐｔｈ２に基づいて、エアコン３３の動作を停止した状態から復帰させるため、車室内の雰囲気を快適に維持することができる。 According to the vehicle control device 11 according to the embodiment of the present invention, even if a sticking abnormality occurs in the negative pressure value Pvs in a state smaller than the first negative pressure threshold Pth1, the first negative pressure The second negative pressure threshold value Pth2 that is smaller than the threshold value Pth1 is used, and based on the second negative pressure threshold value Pth2, the operation of the air conditioner 33 is restored from the stopped state. be able to.
Note that when the generated negative pressure temporarily decreases due to an increase in the load on the internal combustion engine 13, the second negative pressure threshold Pth2 that is smaller than the first negative pressure threshold Pth1 is the same as described above. Since the operation of the air conditioner 33 is returned from the stopped state based on the second negative pressure threshold value Pth2, the atmosphere in the passenger compartment can be maintained comfortably.

また、負圧値Ｐｖｓの固着異常が解消した場合において、エアコン３３の動作を停止または復帰させる制御を適切に行わせることができる。同様に、内燃機関１３の負荷が増大することによる一時的な発生負圧の低下が解消した場合において、エアコン３３の動作を停止または復帰させる制御を適切に行わせることができる。   Further, when the abnormality in fixing the negative pressure value Pvs is resolved, it is possible to appropriately perform control for stopping or returning the operation of the air conditioner 33. Similarly, when the temporary decrease in the generated negative pressure due to an increase in the load on the internal combustion engine 13 is resolved, it is possible to appropriately perform control for stopping or returning the operation of the air conditioner 33.

また、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなっている状態が所定の待機時間（閾値切替時間Ｔｔｈ_ｃｈｇ；例えば５秒などの、適宜変更可能に予め定められる時間長）を超えて継続した場合、図３に示すように、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用いて、エアコン３３の動作を停止した状態から復帰させるため、前記待機時間が経過するまでの間に、一時的に低下した（小さくなった）負圧の回復を図って、エアコン３３の動作を停止した状態から復帰させる確度を高めることができる。   In addition, the state in which the negative pressure value Pvs is smaller than the first negative pressure threshold value Pth1 indicates a predetermined standby time (threshold switching time Tth_chg; for example, a predetermined time length that can be changed as appropriate, such as 5 seconds). In the case of continuing beyond this, as shown in FIG. 3, the second standby pressure threshold Pth2 that is smaller than the first negative pressure threshold Pth1 is used to return the air conditioner 33 from the stopped state, so that the standby Until the time elapses, recovery of the negative pressure that has temporarily decreased (decreased) can be achieved, and the accuracy of returning the air conditioner 33 from the stopped state can be increased.

また、本発明の実施形態に係る車両用制御装置１１では、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなった後に第１の負圧閾値Ｐｔｈ１と比べて大きくなるに至るまでの間、第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行う、構成を採用している。   In the vehicle control device 11 according to the embodiment of the present invention, the control unit 47 compares the negative pressure value Pvs with the first negative pressure threshold value Pth1 after the negative pressure value Pvs becomes smaller than the first negative pressure threshold value Pth1. A configuration is adopted in which control for stopping or returning the operation of the air conditioner 33 is performed using the second negative pressure threshold value Pth2 until it becomes larger.

本発明の実施形態に係る車両用制御装置１１によれば、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１を超える適正範囲に戻るまでの間、第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行うことにより、エアコン３３の動作を暫定的に復帰させることができる。これにより、車室内の雰囲気を可及的に快適に維持することができる。   According to the vehicle control device 11 according to the embodiment of the present invention, the air conditioner 33 is used by using the second negative pressure threshold value Pth2 until the negative pressure value Pvs returns to an appropriate range exceeding the first negative pressure threshold value Pth1. By performing control to stop or return the operation, the operation of the air conditioner 33 can be temporarily returned. Thereby, the atmosphere in a vehicle interior can be maintained as comfortably as possible.

また、本発明の実施形態に係る車両用制御装置１１では、第２の負圧閾値Ｐｔｈ２は、所定の待機時間（閾値切替時間Ｔｔｈ_ｃｈｇ）が経過した時点（図３の時刻ｔ３参照）の負圧値Ｐｖｓと比べて小さくなることを考慮して可変設定される、構成を採用している。   In the vehicle control device 11 according to the embodiment of the present invention, the second negative pressure threshold value Pth2 is the negative pressure at the time when the predetermined standby time (threshold switching time Tth_chg) has elapsed (see time t3 in FIG. 3). A configuration is adopted that is variably set in consideration of being smaller than the value Pvs.

本発明の実施形態に係る車両用制御装置１１によれば、所定の待機時間が経過した時点の負圧値Ｐｖｓと比べて小さくなることを考慮して可変設定される第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行うため、エアコン３３の動作を確実に復帰させることができる。   According to the vehicle control device 11 according to the embodiment of the present invention, the second negative pressure threshold value Pth2 that is variably set in consideration of being smaller than the negative pressure value Pvs at the time when the predetermined standby time has elapsed. Since the control for stopping or returning the operation of the air conditioner 33 is performed using this, the operation of the air conditioner 33 can be reliably returned.

また、本発明の実施形態に係る車両用制御装置１１では、第２の負圧閾値Ｐｔｈ２は、第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行っている場合において、車両の車輪がロック傾向となってＶＳＡ装置（ＡＢＳ装置）３５が作動するまでの間、制動に係る操作力を継続して倍力可能となることを考慮して設定される、構成を採用している。   Further, in the vehicle control device 11 according to the embodiment of the present invention, the second negative pressure threshold value Pth2 is controlled to stop or return the operation of the air conditioner 33 using the second negative pressure threshold value Pth2. In this case, the configuration is set in consideration that the operation force related to braking can be continuously boosted until the vehicle wheels tend to be locked and the VSA device (ABS device) 35 is activated. Adopted.

本発明の実施形態に係る車両用制御装置１１によれば、車両の車輪がロック傾向となってＶＳＡ装置（ＡＢＳ装置）３５が作動するまでの間、制動に係る操作力を継続して倍力可能となることを考慮して可変設定される第２の負圧閾値Ｐｔｈ２を用いてエアコン３３の動作を停止または復帰させる制御を行うため、第２の負圧閾値Ｐｔｈ２でも十分な倍力が確保される結果として、制動時における運転者の負担を軽減することができる。   According to the vehicle control device 11 according to the embodiment of the present invention, the operation force related to braking is continued and boosted until the vehicle wheels tend to lock and the VSA device (ABS device) 35 operates. Since the control of stopping or returning the operation of the air conditioner 33 is performed using the second negative pressure threshold value Pth2 that is variably set in consideration of the possibility of being possible, sufficient boosting is ensured even with the second negative pressure threshold value Pth2. As a result, the burden on the driver during braking can be reduced.

また、本発明の実施形態に係る車両用制御装置１１では、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１または第２の負圧閾値Ｐｔｈ２のいずれかと比べて小さく、かつ、車両の制動に係る操作量が所定の閾値を超えた場合、この制動に係る操作量に応じて、車両の制動を補助するＶＳＡ装置（制動補助装置）３５を作動させる制御を行う、構成を採用してもよい。   In the vehicle control device 11 according to the embodiment of the present invention, the control unit 47 has the negative pressure value Pvs smaller than either the first negative pressure threshold value Pth1 or the second negative pressure threshold value Pth2, and A configuration is adopted in which, when an operation amount related to vehicle braking exceeds a predetermined threshold, control is performed to activate a VSA device (braking assist device) 35 that assists vehicle braking in accordance with the operation amount related to braking. May be.

本発明の実施形態に係る車両用制御装置１１によれば、車室内の雰囲気を快適に維持する効果に加えて、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１または第２の負圧閾値Ｐｔｈ２のいずれかと比べて小さく、かつ、車両の制動に係る操作量が所定の閾値を超えた場合であっても、適正な制動力を確保することができる。   According to the vehicle control device 11 according to the embodiment of the present invention, the negative pressure value Pvs is equal to the first negative pressure threshold value Pth1 or the second negative pressure threshold value Pth2 in addition to the effect of comfortably maintaining the atmosphere in the vehicle interior. Even when the operation amount relating to braking of the vehicle exceeds a predetermined threshold value, an appropriate braking force can be ensured.

〔その他の実施形態〕
以上説明した実施形態は、本発明の具現化例を示したものである。従って、これらによって本発明の技術的範囲が限定的に解釈されることがあってはならない。本発明はその要旨またはその主要な特徴から逸脱することなく、様々な形態で実施することができるからである。 [Other Embodiments]
The embodiment described above shows an embodiment of the present invention. Therefore, the technical scope of the present invention should not be limitedly interpreted by these. This is because the present invention can be implemented in various forms without departing from the gist or main features thereof.

例えば、本発明の実施形態において、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなっている状態が所定の待機時間Ｔｔｈ_ｃｈｇを超えて継続した場合、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用いて、エアコン３３の動作を停止した状態から復帰させる制御を行う、構成を例示して説明したが、本発明はこの例に限定されない。   For example, in the embodiment of the present invention, when the state where the negative pressure value Pvs is smaller than the first negative pressure threshold value Pth1 continues for a predetermined waiting time Tth_chg, Although the configuration has been described in which the control for returning the operation of the air conditioner 33 from the stopped state is performed using the second negative pressure threshold Pth2 that is smaller than the negative pressure threshold Pth1, the present invention is limited to this example. Not.

前記の構成に代えて、例えば、制御部４７は、負圧値Ｐｖｓが第１の負圧閾値Ｐｔｈ１と比べて小さくなることでエアコン３３の動作が停止した状態が所定の待機時間Ｔｔｈ_ｃｈｇを超えて継続した場合、第１の負圧閾値Ｐｔｈ１と比べて小さい第２の負圧閾値Ｐｔｈ２を用いて、エアコン３３の動作を停止した状態から復帰させる制御を行う、構成を採用してもよい。   Instead of the above-described configuration, for example, the control unit 47 determines that the state in which the operation of the air conditioner 33 has stopped due to the negative pressure value Pvs becoming smaller than the first negative pressure threshold value Pth1 exceeds the predetermined standby time Tth_chg. When it continues, you may employ | adopt the structure which performs control which resets the operation | movement of the air conditioner 33 from the state which stopped operation | movement using the 2nd negative pressure threshold value Pth2 small compared with the 1st negative pressure threshold value Pth1.

また、本発明の実施形態において、第１の負圧閾値Ｐｔｈ１を用いて、エアコン３３の動作を停止または復帰させる制御を行う、構成を例示して説明したが、本発明はこの例に限定されない。例えば、エアコン３３の動作を停止させる際の負圧閾値として第１の負圧閾値Ｐｔｈ１を用いる一方、エアコン３３の動作を復帰させる際の負圧閾値として、第１の負圧閾値Ｐｔｈ１と比べて大きい第１の負圧閾値Ｐｔｈ１の相関値を用いる構成を採用してもよい。   Further, in the embodiment of the present invention, the configuration in which the control of stopping or returning the operation of the air conditioner 33 is performed using the first negative pressure threshold value Pth1 has been described, but the present invention is not limited to this example. . For example, the first negative pressure threshold Pth1 is used as the negative pressure threshold when stopping the operation of the air conditioner 33, while the negative pressure threshold when returning the operation of the air conditioner 33 is compared with the first negative pressure threshold Pth1. You may employ | adopt the structure which uses the correlation value of the big 1st negative pressure threshold value Pth1.

このように構成すれば、第１の負圧閾値Ｐｔｈ１（その相関値を含む）を用いて、エアコン３３の動作を停止または復帰させる制御を行う際に、エアコン３３の動作が停止と復帰の間を短時間で繰り返す不安定な状態に陥る事態を未然に回避することができる。   According to this configuration, when the control for stopping or returning the operation of the air conditioner 33 is performed using the first negative pressure threshold Pth1 (including the correlation value), the operation of the air conditioner 33 is performed between the stop and the return. It is possible to avoid the situation of falling into an unstable state that repeats in a short time.

前記と同様に、本発明の実施形態において、第２の負圧閾値Ｐｔｈ２を用いて、エアコン３３の動作を停止または復帰させる制御を行う、構成を例示して説明したが、本発明はこの例に限定されない。例えば、エアコン３３の動作を停止させる際の負圧閾値として第２の負圧閾値Ｐｔｈ２を用いる一方、エアコン３３の動作を復帰させる際の負圧閾値として、第２の負圧閾値Ｐｔｈ２と比べて大きい第２の負圧閾値Ｐｔｈ２の相関値を用いる構成を採用してもよい。   Similarly to the above, in the embodiment of the present invention, the second negative pressure threshold value Pth2 is used to control to stop or return the operation of the air conditioner 33. However, the present invention is not limited to this example. It is not limited to. For example, the second negative pressure threshold value Pth2 is used as the negative pressure threshold value when stopping the operation of the air conditioner 33, while the negative pressure threshold value when returning the operation of the air conditioner 33 is compared with the second negative pressure threshold value Pth2. A configuration that uses the correlation value of the large second negative pressure threshold Pth2 may be employed.

このように構成すれば、第２の負圧閾値（その相関値を含む）Ｐｔｈ２を用いて、エアコン３３の動作を停止または復帰させる制御を行う際に、エアコン３３の動作が停止と復帰の間を短時間で繰り返す不安定な状態に陥る事態を未然に回避することができる。   With this configuration, when the control for stopping or returning the operation of the air conditioner 33 is performed using the second negative pressure threshold value (including the correlation value) Pth2, the operation of the air conditioner 33 is between the stop and the return. It is possible to avoid the situation of falling into an unstable state that repeats in a short time.

１１ 車両用制御装置
１３ 内燃機関
２３ ブースタ（負圧倍力装置）
３３ エアコン
３５ ＶＳＡ装置（ＡＢＳ装置、制動補助装置）
３９ 圧縮機
４５ 負圧取得部
４７ 制御部
Ｐｖｓ 負圧値
Ｐｔｈ１ 第１の負圧閾値
Ｐｔｈ２ 第２の負圧閾値
Ｔｔｈ_ｃｈｇ 所定の待機時間 DESCRIPTION OF SYMBOLS 11 Control apparatus for vehicles 13 Internal combustion engine 23 Booster (negative pressure booster)
33 Air conditioner 35 VSA device (ABS device, braking assist device)
39 Compressor 45 Negative Pressure Acquisition Unit 47 Control Unit Pvs Negative Pressure Value Pth1 First Negative Pressure Threshold Pth2 Second Negative Pressure Threshold Tth_chg Predetermined Standby Time

Claims (5)

車両に搭載された内燃機関の吸気負圧を用いて制動に係る操作力を倍力させる負圧倍力装置の負圧を取得する負圧取得部と、
前記負圧取得部による負圧値が第１の負圧閾値と比べて小さくなった場合に、前記内燃機関の駆動力によって駆動される圧縮機を有するエアコンの動作を停止させる一方、前記負圧値が前記第１の負圧閾値と比べて小さくなった後に当該第１の負圧閾値と比べて大きくなった場合に、前記エアコンの動作を復帰させる制御を行う制御部と、を備え、
前記制御部は、前記負圧値が前記第１の負圧閾値と比べて小さくなっている状態が所定の待機時間を超えて継続した場合、当該第１の負圧閾値と比べて小さい第２の負圧閾値を切り替えて用い、当該第２の負圧閾値に基づいて、前記エアコンの動作を停止した状態から復帰させる制御を行う、
ことを特徴とする車両用制御装置。 A negative pressure acquisition unit that acquires a negative pressure of a negative pressure booster that boosts an operation force related to braking using an intake negative pressure of an internal combustion engine mounted on the vehicle;
When the negative pressure value obtained by the negative pressure acquisition unit becomes smaller than the first negative pressure threshold, the operation of the air conditioner having a compressor driven by the driving force of the internal combustion engine is stopped, while the negative pressure is A control unit for performing control to restore the operation of the air conditioner when the value becomes smaller than the first negative pressure threshold after the value becomes smaller than the first negative pressure threshold;
When the state in which the negative pressure value is smaller than the first negative pressure threshold value continues beyond a predetermined standby time, the control unit determines that the second negative pressure value is smaller than the first negative pressure threshold value. The negative pressure threshold is switched and used, and based on the second negative pressure threshold, control is performed to return the air conditioner from a stopped state.
A control apparatus for a vehicle. 請求項１に記載の車両用制御装置であって、
前記制御部は、前記負圧値が前記第１の負圧閾値と比べて小さくなった後に当該第１の負圧閾値と比べて大きくなるに至るまでの間、前記第２の負圧閾値を用いて前記エアコンの動作を停止または復帰させる制御を行う、
ことを特徴とする車両用制御装置 。 The vehicle control device according to claim 1,
The control unit sets the second negative pressure threshold value until the negative pressure value becomes larger than the first negative pressure threshold value after the negative pressure value becomes smaller than the first negative pressure threshold value. Control to stop or restore the operation of the air conditioner using,
A vehicle control device characterized by the above. 請求項１または２に記載の車両用制御装置であって、
前記第２の負圧閾値は、前記待機時間が経過した時点の前記負圧値と比べて小さくなることを考慮して可変設定される、
ことを特徴とする車両用制御装置 。 The vehicle control device according to claim 1 or 2,
The second negative pressure threshold is variably set in consideration of being smaller than the negative pressure value at the time when the waiting time has elapsed.
A vehicle control device characterized by the above. 請求項１〜３のいずれか一項に記載の車両用制御装置であって、
前記第２の負圧閾値は、当該第２の負圧閾値を用いて前記エアコンの動作を停止または復帰させる制御を行っている場合において、前記車両の車輪がロック傾向となってＡＢＳ装置が作動するまでの間、前記制動に係る操作力を継続して倍力可能となることを考慮して設定される、
ことを特徴とする車両用制御装置。 The vehicle control device according to any one of claims 1 to 3,
When the second negative pressure threshold is controlled to stop or restore the operation of the air conditioner using the second negative pressure threshold, the ABS of the vehicle is activated because the vehicle wheel tends to lock. Until it is set in consideration that the operation force related to the braking can be continuously boosted,
A control apparatus for a vehicle. 請求項１〜４のいずれか一項に記載の車両用制御装置であって、
前記制御部は、前記負圧値が前記第１の負圧閾値または前記第２の負圧閾値のいずれかと比べて小さく、かつ、前記車両の制動に係る操作量が所定の閾値を超えた場合、当該制動に係る操作量に応じて、当該車両の制動を補助する制動補助装置を作動させる制御を行う、
ことを特徴とする車両用制御装置。 The vehicle control device according to any one of claims 1 to 4,
When the negative pressure value is smaller than either the first negative pressure threshold value or the second negative pressure threshold value, and the operation amount related to braking of the vehicle exceeds a predetermined threshold value, the control unit In accordance with an operation amount related to the braking, control is performed to activate a braking assist device that assists braking of the vehicle.
A control apparatus for a vehicle.
JP2012242866A 2012-11-02 2012-11-02 Vehicle control device Expired - Fee Related JP5815494B2 (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016016724A (en) * 2014-07-08 2016-02-01 本田技研工業株式会社 Vehicular control device
US9845742B2 (en) 2014-12-01 2017-12-19 Hyundai Motor Company Turbocharger generating vacuum negative pressure, vacuum negative pressure supply type brake system using the same, and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016016724A (en) * 2014-07-08 2016-02-01 本田技研工業株式会社 Vehicular control device
US9845742B2 (en) 2014-12-01 2017-12-19 Hyundai Motor Company Turbocharger generating vacuum negative pressure, vacuum negative pressure supply type brake system using the same, and control method thereof

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