IP Library Granted Patent US 12697984
Granted Patent B2
US 12697984 · App. 18/548,272 · Granted Aug 4, 2026

Vehicle control device, vehicle control method, and non-transitory computer-readable medium

Inventors: Tarou Murazumi (Atsugi, JP); Hajime Tasaka (Ebina, JP); Keisuke Iwado (Ebina, JP); Hiroyuki Tokoi (Isehara, JP); Yuji Oishi (Sagamihara, JP)
Assignees: JATCO Ltd; NISSAN MOTOR CO., LTD.
B60W50/0205G07C5/0808
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Quick Facts
Patent No.
US 12697984
App. No.
18/548,272
Granted
Aug 4, 2026
Kind
B2
Abstract

Provided is a vehicle control device that controls a vehicle including an automatic transmission, the automatic transmission including a first oil pump driven by a first drive source that drives a drive wheel and a second oil pump driven by a second drive source, wherein the vehicle control device drives the second oil pump when the first drive source is started, and drives the second oil pump when a time during which the second oil pump is not driven after the first drive source is started continues for a predetermined time or longer, and a drive time for the second oil pump when the first drive source is started is longer than a drive time when the time during which the second oil pump is not driven continues for the predetermined time or longer.

Claims (22)

1 . A vehicle control device that controls a vehicle including an automatic transmission, the automatic transmission including a first oil pump driven by a first drive source that drives a drive wheel and a second oil pump driven by a second drive source, wherein

the vehicle control device drives the second oil pump when the first drive source is started, and drives the second oil pump when a time during which the second oil pump is not driven after the first drive source is started continues for a predetermined time or longer, and

a drive time for the second oil pump when the first drive source is started is longer than a drive time when the time during which the second oil pump is not driven continues for the predetermined time or longer.

2 . The vehicle control device according to claim 1 , wherein

the first drive source is an engine.

3 . The vehicle control device according to claim 1 , wherein

the second drive source is a motor.

4 . The vehicle control device according to claim 1 , wherein

the vehicle control device executes a state diagnosis for the second oil pump during driving for the second oil pump when the first drive source is started.

5 . A vehicle control method that controls a vehicle including an automatic transmission, the automatic transmission including a first oil pump driven by a first drive source that drives a drive wheel and a second oil pump driven by a second drive source, the control method comprising:

driving the second oil pump when the first drive source is started, and

driving the second oil pump when a time during which the second oil pump is not driven after the first drive source is started continues for a predetermined time or longer, wherein

a drive time for the second oil pump when the first drive source is started is longer than a drive time when the time during which the second oil pump is not driven continues for the predetermined time or longer.

6 . The vehicle control method according to claim 5 , wherein

executing a state diagnosis for the second oil pump during driving for the second oil pump when the first drive source is started.

7 . A non-transitory computer-readable medium storing a program executable by a computer in a vehicle including an automatic transmission, the automatic transmission including a first oil pump driven by a first drive source that drives a drive wheel and a second oil pump driven by a second drive source, the program causing the computer to execute:

a procedure of driving the second oil pump when the first drive source is started, and

a procedure of driving the second oil pump when a time during which the second oil pump is not driven after the first drive source is started continues for a predetermined time or longer, wherein

a drive time for the second oil pump when the first drive source is started is longer than a drive time when the time during which the second oil pump is not driven continues for the predetermined time or longer.

8 . The non-transitory computer-readable medium according to claim 7 , wherein

the program causing the computer to execute:

a procedure of executing a state diagnosis for the second oil pump during driving for the second oil pump when the first drive source is started.