Engine operation controller for hybrid electric vehicle

An engine operation controller for a hybrid electric automobile equipped at least with a motor (3) and an engine (4), comprising:

• speed detection means (30) for detecting speed of the vehicle;
• door detection means (31) for detecting an open or closed state of a door of the vehicle;
• and
• control means (6) for controlling operation of said engine (4);
• wherein, if it is detected by said speed detection means (30) that said speed is less than a first predetermined value (V1), operation of said engine (4) is prohibited by said control means (6);
• thereafter, when an open or closed state of the door is not detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6) if said speed becomes equal to or greater than a second predetermined value (V2) which is greater than said first predetermined value (V1);
• and
• when an open or closed state of the door is detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6) if said speed becomes equal to or greater than a third predetermined value (V3) which is greater than said second predetermined value (V2).

An engine operation controller for a hybrid electric automobile equipped at least with a motor (3) and an engine (4), comprising:

• speed detection means (30) for detecting speed of the vehicle;
• door detection means (31) for detecting an open or closed state of a door of the vehicle;
• and
• control means (6) for controlling operation of said engine (4);
• wherein, if it is detected by said speed detection means (30) that said speed is less than a first predetermined value (V1), operation of said engine (4) is prohibited by said control means (6);
• thereafter, when an open or closed state of the door is not detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6) if a first predetermined time (Δt2) elapses;
• and
• when an open or closed state of the door is detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6) if a second predetermined time (Δt3) greater than said first predetermined time (Δt2) elapses.

An engine operation controller for a hybrid electric automobile equipped at least with a motor (3) and an engine (4), comprising:

• speed detection means (30) for detecting speed of the vehicle;
• door detection means (31) for detecting an open or closed state of a door of the vehicle;
• and
• control means (6) for controlling operation of said engine (4);
• wherein, if it is detected by said speed detection means (30) that said speed is less than a first predetermined value (V1), operation of said engine (4) is prohibited by said control means (6);
• thereafter, when an open or closed state of the door is not detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6), if a first predetermined time (Δt2) elapses and, in addition, said speed becomes equal to or greater than a second predetermined value (V2) which is greater than said first predetermined value (V1);
• and
• when an open or closed state of the door is detected by said door detection means (31), the operation prohibition of said engine (4) is removed by said control means (6), if a second predetermined time (Δt3) greater than said first predetermined time (Δt2) elapses and, in addition, said speed becomes equal to or greater than a third predetermined value (V3) which is greater than said second predetermined value (V2).