Prime-mover dynamo plants – Electric control – Electric-starting motor
Patent
1996-12-12
1998-10-06
Stephan, Steven L.
Prime-mover dynamo plants
Electric control
Electric-starting motor
322 16, 1233391, F02N 1100
Patent
active
058181164
ABSTRACT:
A starting control apparatus of the present invention prevents a variation in output torque of an internal combustion engine at a time of starting the internal combustion engine, while effectively reducing an emission. In response to a requirement for starting an engine (150) (S212), a controller (180) calculates an idle revolving speed Ni that is a target at a starting time and a required amount of the air Qi for maintaining the idle revolving speed Ni (S213). The idle revolving speed Ni and the required amount of the air Qi are respectively set equal to a target engine speed Ne* and a target amount of air intake Q* (S214). The controller (180) sets torque command values Tm1* and Tm2* of first and second motors MG1 and MG2, in order to enable the motors MG1 and MG2 to generate a cranking torque required for revolving the engine (150) at the target revolving speed Ne* (S216 and S218), and controls the first motor MG1 and the second motor MG2 (S220 and S222). The controller (180) subsequently adjusts the amount of air intake Q into the engine (150) to the target amount of air intake Q* by idle speed control (S224). After the revolving speed Ne of the engine (150) and the amount of air intake Q are stabilized, the controller (180) starts fuel injection control and ignition timing control (S230) to start the engine (150). The amount of fuel injection and the ignition timing are determined according to the target engine speed Ne* and the target amount of air intake Q*.
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Hata Hiroshi
Hirose Kiyoo
Ibaraki Ryuji
Mikami Tsuyoshi
Nakae Koichi
Ponomarenko Nicholas
Stephan Steven L.
Toyota Jidosha & Kabushiki Kaisha
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