Vehicle and method for controlling the same
First Claim
Patent Images
1. A vehicle comprising:
- an internal combustion engine configured to be intermittently stopped after said internal combustion engine is started;
a pump for circulating a cooling medium for cooling said internal combustion engine; and
a control device for controlling said internal combustion engine,wherein, when said cooling medium has a low temperature, said control device controls said pump to limit a flow rate of said cooling medium so that it is smaller than when said cooling medium has a high temperature, andwhen said flow rate of said cooling medium is limited, said control device relaxes a condition associated with a temperature of said internal combustion engine so as to permit intermittently stopping said internal combustion engine;
as compared with when said flow rate is not limited.
1 Assignment
0 Petitions
Accused Products
Abstract
A vehicle includes an engine capable of being intermittently stopped after it is started; a water pump for circulating cooling water, and an ECU. When the cooling water has low temperature the ECU controls the water pump to limit the flow rate of the cooling water to be smaller than when the cooling water has high temperature. When the cooling water has a limited flow rate the ECU sets lower a threshold value of the cooling water'"'"'s temperature for permitting intermittently stopping the engine than when the cooling water does not have a limited flow rate. When the cooling water has a limited flow rate the engine can nonetheless be intermittently stopped at an appropriate time.
-
Citations
21 Claims
-
1. A vehicle comprising:
-
an internal combustion engine configured to be intermittently stopped after said internal combustion engine is started; a pump for circulating a cooling medium for cooling said internal combustion engine; and a control device for controlling said internal combustion engine, wherein, when said cooling medium has a low temperature, said control device controls said pump to limit a flow rate of said cooling medium so that it is smaller than when said cooling medium has a high temperature, and when said flow rate of said cooling medium is limited, said control device relaxes a condition associated with a temperature of said internal combustion engine so as to permit intermittently stopping said internal combustion engine;
as compared with when said flow rate is not limited. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for controlling a vehicle,
the vehicle comprising: -
an internal combustion engine configured to be intermittently stopped after said internal combustion engine is started, a pump for circulating a cooling medium for cooling said internal combustion engine, and a control device for controlling said internal combustion engine, the method comprising the steps of; controlling said pump to limit a flow rate of said cooling medium when said cooling medium has a low temperature so that said flow rate is smaller than when said cooling medium has a high temperature; and relaxing a condition associated with a temperature of said internal combustion engine when said flow rate is limited so as to permit intermittently stopping said internal combustion engine, as compared with when said flow rate is not limited.
-
-
14. A vehicle comprising:
-
an internal combustion engine configured to be intermittently stopped after said internal combustion engine is started; a pump for circulating a cooling medium for cooling said internal combustion engine; and a control device for controlling said internal combustion engine, wherein, when said control device controls said pump to limit a flow rate of said cooling medium and when said cooling medium has a temperature higher than a threshold value γ
2, said control device permits intermittently stopping said internal combustion engine, andwhen said control device controls said pump to limit a flow rate of said cooling medium and when said cooling medium has a temperature equal to or smaller than said threshold value γ
2, said control device does not permit intermittently stopping said internal combustion engine. - View Dependent Claims (15, 16, 17)
-
-
18. A method of controlling intermittently stopping an internal combustion engine, the method comprising:
-
permitting intermittently stopping said internal combustion engine when a flow rate of a cooling medium is limited and when said cooling medium has a temperature higher than a threshold value γ
2; andnot permitting intermittently stopping said internal combustion engine when said flow rate of said cooling medium is limited and when said cooling medium has a temperature equal to or smaller than said threshold value γ
2. - View Dependent Claims (19, 20, 21)
-
Specification