Btdcとは 意味・読み方・使い方

On the other hand, since atomization of spray is not secured and HC creation quantity increases inversely during a very short period of low cylinder temperature right after start, super retard combustion is prohibited and fuel is injected in compression stroke and is ignited BTDC.例文帳に追加

一方、筒内温度が低い始動直後の僅かな期間内は、噴霧の気化が確保されずにＨＣ生成量が逆に増加するので、超リタード燃焼を禁止し、圧縮行程噴射のＢＴＤＣ点火とする。 - 特許庁

Fuel injection is parted into two times, and the first time fuel injection is performed during a compression stroke and the second time fuel injection is performed after 45° BTDC (Embodiment 1).例文帳に追加

燃料噴射は２回に分割して、圧縮行程中に１回目の燃料噴射を行い、２回目の燃料噴射は４５°ＢＴＤＣ以降に行う（実施例１）。 - 特許庁

The control unit comprises an injection control section 50a which sets a fuel injection start timing at a retard angle side rather than BTDC 40 degrees CA so that the fuel spray can be securely trapped in the piston cavity 5a when the fuel pressure is increased in the low speed region.例文帳に追加

低速域における燃圧の増加に対して燃料噴霧のピストンキャビティ５ａへのトラップ性を確保できるよう、燃料噴射開始時期をＢＴＤＣ４０°ＣＡよりも遅角側に設定する噴射制御部５０ａを備える。 - 特許庁

From a crank angle sensor, three reference signals α, β, γ are generated to each at those of BTDC α°, β°, γ° (α<β<γ), while cylinder discriminating signals δ are made so as to be selectively generated in a space between both reference signals β and α.例文帳に追加

クランク角センサから、ＢＴＤＣα°，β°，γ°（α＜β＜γ）においてそれぞれに基準信号α，β，γを発生させる一方、前記基準信号βと基準信号αとの間で、気筒判別信号δを選択的に発生させるようにする。 - 特許庁

Since set of injection timing command value is done with a short interval such as every 10° CA advancement during tentative establishment of crank angle right after engine start, injection timing command value is set in a variable range (BTDC 390° -10°) of fuel injection timing A calculated based on an engine operation state.例文帳に追加

エンジン始動開始後、クランク角の仮確定中においては、噴射時期指令値の設定が１０°ＣＡ進む毎といった短い間隔にされるため、エンジン運転状態に基づき算出される燃料噴射時期Ａの可変範囲内（ＢＴＤＣ３９０°〜１０°）で上記設定が行われる。 - 特許庁

In an area I of low rotation driving and middle load and more driving of an engine, fuel injection by an injector is conducted in two steps of early injection which starts injecting one-third or more of total injection amount per one fuel cycle by BTDC 90° CA, and later injection which starts injecting the remaining fuel near a compression upper dead point.例文帳に追加

エンジン１の低回転及び中負荷以上の運転領域（Ｉ）で、インジェクタ５による燃料噴射を、１燃焼サイクルにおける噴射総量の１/３以上をＢＴＤＣ９０°ＣＡで噴射開始する早期噴射と、残りの燃料を圧縮上死点近傍で噴射開始する後期噴射との２段階に分けて行わせる。 - 特許庁