FUEL-SAVING DRIVING EVALUATION SYSTEM

• US 20110257832A1
• Filed: 12/14/2009
• Published: 10/20/2011
• Est. Priority Date: 12/22/2008
• Status: Active Grant

• Current Assignee: UD Trucks Corporation (Isuzu Motors Limited)
• Original Assignee: UD Trucks Corporation (Isuzu Motors Limited)
• Inventors: Ishida, Takahiro, Nishiyama, Yoshitaka
• Granted Patent: US 8,874,303 B2
• Time in Patent Office: Days
• US Class Current: 701/29
• CPC Class Codes: B60K 2360/174 Economic driving
• CPC Class Codes: B60K 2370/174 Economic driving
• CPC Class Codes: B60K 35/28 characterised by the type of the output information, e.g. video entertainment or vehicle dynamics information; characterised by the purpose of the output information, e.g. for attracting the attention of the driver
• CPC Class Codes: B60R 16/0236 for economical driving
• CPC Class Codes: B60W 50/14 Means for informing the driver, warning the driver or prompting a driver intervention
• CPC Class Codes: F02D 2200/0614 Actual fuel mass or fuel injection amount
• CPC Class Codes: F02D 2200/501 Vehicle speed
• CPC Class Codes: F02D 2200/606 Driving style, e.g. sporty or economic driving
• CPC Class Codes: Y02T 10/84 Data processing systems or methods, management, administration

Abstract

Disclosed is a fuel-saving driving evaluation system which provides a driver with advice suitable for the driver based on fuel-saving driving evaluation standards which correspond to the fuel-saving driving proficiency level of the driver, so that the driver is relaxed and the fuel-saving driving skill of the driver is gradually improved. The fuel-saving driving evaluation system is comprised of an engine speed measuring device (1) for measuring the engine speed of a vehicle (10) to be evaluated, a vehicle speed measuring device (2) for measuring the speed of the vehicle (10) to be evaluated, a fuel flow measuring device (3) for measuring the flow rate of a fuel, and a control device (9). The control device (9) has a function to store several kinds of standard values and target values of parameters (driving operation parameters) for evaluating the fuel-saving driving level in the vehicle (10) to be evaluated, and a function to determine the standard values and the target values of the parameters based on control signals sent from outside of the control device (9).

Claims

1. A fuel-saving driving evaluation system comprising:

an engine speed measuring device which measures an engine speed of a vehicle to be evaluated;

a vehicle speed measuring device which measures a vehicle speed of the vehicle to be evaluated;

a fuel flow-rate measuring device which measures a fuel flow rate; and

a controller,

the controller has a function of storing a plurality of types of standard values and target values of parameters relating to fuel-saving driving evaluation of the vehicle to be evaluated;

a function of determining the standard values and the target values of said parameters on the basis of a control signal sent from the outside of the controller; and

a function of comparing the determined standard values and the target values with the measurement results of the measuring device and of determining whether or not the fuel-saving driving is achieved.

2. The fuel-saving driving evaluation system according to claim 1, wherein

the controller has a function of storing the standard values and the target values to become the basis of said parameters and a function of separately setting the standard values and the target values of said parameters by using the standard values and the target values to become the basis.

3. The fuel-saving driving evaluation system according to claim 1, wherein

in a case that said parameter is a parameter other than a rate of driving by inertia during deceleration, the following equation is formed between the standard values and the target values of said separately set parameters and the standard values and the target values of the parameters to be the basis:

separately set standard value=standard value to be the basis+(standard value to be the basis−

target value to be the basis)×

(100−

E)/(100−

50)

separately set target value=target value to be the basis+(standard value to be the basis−

target value to be the basis)×

(100−

E)/(100−

50)

and E is a constant set by a difficulty level.

4. The fuel-saving driving evaluation system according to claim 1, wherein

in a case that said parameter is a rate of driving by inertia during deceleration, the following equation is formed between the standard values and the target values of said separately set parameters and the standard values and the target values of the parameters to be the basis:

separately set standard value=standard value to be the basis−

(target value to be the basis−

standard value to be the basis)×

(100−

E)/(100−

50)

separately set target value=target value to be the basis−

(target value to be the basis−

standard value to be the basis)×

(100−

E)/(100−

50) and

E is a constant set by the difficulty level.

5. The fuel-saving driving evaluation system according to claim 3, wherein

in case that only one type of the standard value and the target value of said separately set parameter is to be set, only one type of the value of said E is set, while if a plurality of types of the standard value and the target value of said separately set parameter are to be set, said constant E is set in plural.

6. The fuel-saving driving evaluation system according to claim 2, wherein

in a case that said parameter is a parameter other than a rate of driving by inertia during deceleration, the following equation is formed between the standard values and the target values of said separately set parameters and the standard values and the target values of the parameters to be the basis:

Separately set standard value=standard value to be the basis+(standard value to be the basis−

target value to be the basis)×

(100−

E)/(100−

50)

Separately set target value=target value to be the basis+(standard value to be the basis−

target value to be the basis)×

(100−

E)/(100−

50)

and E is a constant set by a difficulty level.

7. The fuel-saving driving evaluation system according to claim 2, wherein

in a case that said parameter is a rate of driving by inertia during deceleration, the following equation is formed between the standard values and the target values of said separately set parameters and the standard values and the target values of the parameters to be the basis:

separately set standard value=standard value to be the basis−

(target value to be the basis−

standard value to be the basis)×

(100−

E)/(100−

50)

separately set target value=target value to be the basis−

(target value to be the basis−

standard value to be the basis)×

(100−

E)/(100−

50) and

E is a constant set by the difficulty level.

8. The fuel-saving driving evaluation system according to claim 4, wherein

in case that only one type of the standard value and the target value of said separately set parameter is to be set, only one type of the value of said E is set, while if a plurality of types of the standard value and the target value of said separately set parameter are to be set, said constant E is set in plural.

9. The fuel-saving driving evaluation system according to claim 6, wherein

in case that only one type of the standard value and the target value of said separately set parameter is to be set, only one type of the value of said E is set, while if a plurality of types of the standard value and the target value of said separately set parameter are to be set, said constant E is set in plural.

10. The fuel-saving driving evaluation system according to claim 7, wherein

in case that only one type of the standard value and the target value of said separately set parameter is to be set, only one type of the value of said E is set, while if a plurality of types of the standard value and the target value of said separately set parameter are to be set, said constant E is set in plural.