High acceleration time shift control apparatus and control method for vehicle
First Claim
1. A high acceleration time shift control apparatus for a vehicle, comprising:
- a transmission which achieves plural shift speeds whose gear ratios are different from each other; and
a high acceleration time upshifting control device which changes a shift speed of the transmission to a higher speed based on a predetermined determination rotational speed such that an input rotational speed of the transmission substantially reaches a target maximum rotational speed when a request for high acceleration is made by a driver, wherein the high acceleration time upshifting control device outputs an upshift command for performing an upshift when the determination rotational speed reaches a predetermined shift determination speed;
calculates an actual ineffective time until shifting is actually started and the input rotational speed starts decreasing after the upshift command is output;
computes a virtual maximum rotational speed, that is a maximum rotational speed when the input rotational speed changes at a reference rotational speed change rate, based on the input rotational speed when the upshift command is output, the ineffective time and the predetermined reference rotational speed change rate; and
changes the shift determination speed such that the virtual maximum rotational speed comes close to the target maximum rotational speed and then performs learning.
1 Assignment
0 Petitions
Accused Products
Abstract
A high acceleration time shift control apparatus and method for a vehicle is provided. The high acceleration time shift control apparatus includes a transmission which achieves plural shift speeds whose gear ratios are different from each other; and a high acceleration time upshifting control device which changes a shift speed of the transmission to a higher speed based on a predetermined determination rotational speed such that an input rotational speed of the transmission substantially reaches a target maximum rotational speed when a request for high acceleration is made by a driver. The high acceleration time upshifting control device outputs an upshift command for performing an upshift when the determination rotational speed reaches a predetermined shift determination speed; calculates an actual ineffective time until shifting is actually started and the input rotational speed starts decreasing after the upshift command is output; computes a virtual maximum rotational speed, that is a maximum rotational speed when the input rotational speed changes at a reference rotational speed change rate, based on the input rotational speed when the upshift command is output, the ineffective time and the predetermined reference rotational speed change rate; and changes the shift determination speed such that the virtual maximum rotational speed comes close to the target maximum rotational speed and then performs learning.
-
Citations
12 Claims
-
1. A high acceleration time shift control apparatus for a vehicle, comprising:
-
a transmission which achieves plural shift speeds whose gear ratios are different from each other; and a high acceleration time upshifting control device which changes a shift speed of the transmission to a higher speed based on a predetermined determination rotational speed such that an input rotational speed of the transmission substantially reaches a target maximum rotational speed when a request for high acceleration is made by a driver, wherein the high acceleration time upshifting control device outputs an upshift command for performing an upshift when the determination rotational speed reaches a predetermined shift determination speed;
calculates an actual ineffective time until shifting is actually started and the input rotational speed starts decreasing after the upshift command is output;
computes a virtual maximum rotational speed, that is a maximum rotational speed when the input rotational speed changes at a reference rotational speed change rate, based on the input rotational speed when the upshift command is output, the ineffective time and the predetermined reference rotational speed change rate; and
changes the shift determination speed such that the virtual maximum rotational speed comes close to the target maximum rotational speed and then performs learning. - View Dependent Claims (2, 3, 4)
-
-
5. A high acceleration time shift control apparatus for a vehicle, comprising:
-
a transmission which achieves plural shift speeds whose gear ratios are different from each other; and high acceleration time upshifting means for changing a shift speed of the transmission to a higher speed based on a predetermined determination rotational speed such that an input rotational speed of the transmission substantially reaches a target maximum rotational speed when a request for high acceleration is made by a driver, wherein the high acceleration time upshifting means, comprises; shift determination means for outputting an upshift command for performing an upshift when the determination rotational speed reaches the predetermined shift determination speed; ineffective time calculating means for calculating an actual ineffective time until shifting is actually started and the input rotational speed starts decreasing after the upshift command is output; virtual maximum rotational speed computing means for computing a virtual maximum rotational speed, that is a maximum rotational speed when the input rotational speed changes at a reference rotational speed change rate, based on the input rotational speed when the upshift command is output, the ineffective time and the predetermined reference rotational speed change rate; and learning means for changing the shift determination speed such that the virtual maximum rotational speed comes close to the target maximum rotational speed. - View Dependent Claims (6, 7, 8)
-
-
9. A high acceleration time shift control method for a vehicle comprising a transmission that achieves plural shift speeds whose gear ratios are different from each other, comprising the steps of:
-
changing a shift speed of the transmission to a higher speed based on a predetermined determination rotational speed such that an input rotational speed of the transmission substantially reaches a target maximum rotational speed when a request for high acceleration is made by a driver; outputting an upshift command for upshifting when the determination rotational speed reaches a predetermined shift determination speed; calculating an actual ineffective time until shifting is actually started and the input rotational speed starts decreasing after the upshift command is output; computing a virtual maximum rotational speed, that is a maximum rotational speed when the input rotational speed changes at a reference rotational speed change rate, based on an input rotational speed when the upshift command is output, the ineffective time, and the predetermined reference rotational speed change rate; and changing the shift determination speed such that the virtual maximum rotational speed comes close to the target maximum rotational speed and then performing learning. - View Dependent Claims (10, 11, 12)
-
Specification