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Estimating system for vehicle running state

A technology for evaluating systems and conditions, which is applied in the system field of evaluating vehicle operating conditions, can solve the problem that it is difficult for drivers to know fuel economy, and achieve the effect of improving fuel economy

Inactive Publication Date: 2006-07-19
MIYAMA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, just by looking at the displayed fuel economy calculations, it is difficult for the driver to know when to shift gears in order to improve fuel economy

Method used

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  • Estimating system for vehicle running state
  • Estimating system for vehicle running state
  • Estimating system for vehicle running state

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] figure 1 A schematic structure of a vehicle including the vehicle behavior evaluation system according to the present invention is shown. Engine 1 is a common rail diesel engine. The fuel supplied from the fuel tank is pressurized by the high-pressure fuel pump 2 and then accumulated in the common rail 3 . Fuel is injected to the cylinders of the engine 1 by driving the electronically controlled injector 4 . The pressure control valve 5 is a valve for adjusting the pressure inside the common rail 3 . When the oil pressure inside the common guide rail 3 reaches a predetermined high pressure, the pressure control valve 5 is automatically opened to prevent the oil pressure inside the common guide rail 3 from rising too high.

[0020] The output shaft of the engine 1 is connected to the drive wheels through a gearbox 8, a screw shaft 9 and a differential gear unit not shown in the drawings. The output of the engine 1 is transmitted to the drive wheels through these comp...

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Abstract

An evaluation system for vehicle operating conditions which is applied to a vehicle provided with an engine (1) and a manual transmission (8) connected to the engine (1) comprises a sensor (21, 24) for detecting the operating conditions of the engine (1) and a controller (30). On the basis of the operating conditions of the engine (1), the controller (30) determines whether or not the fuel economy of the vehicle would be improved by shifting the transmission (8) upward from the current gear position to a gear position one step further toward a HIGH side, and instructs a driver to shift the transmission (8) upward when it is determined that the fuel economy of the vehicle would be improved by shifting the transmission (8) upward.

Description

technical field [0001] The invention relates to a system for assessing the operating condition of a vehicle. Background technique [0002] JP 2000-205925A published by the Japan Patent Office in 2000 discloses a fuel economy display device. This device calculates the fuel consumption based on the fuel injection pulse signal output by the engine controller, and calculates the mileage based on the vehicle speed pulse signal output by the vehicle speed sensor. Then, the fuel economy is calculated by dividing the calculated mileage by the fuel consumption, and the calculated fuel economy is displayed to the driver. [0003] To improve the fuel economy of a vehicle equipped with a manual transmission, it is effective to shift up the transmission gear at the appropriate time. However, it is difficult for the driver to know when a shift operation should be performed in order to improve fuel economy just by looking at the displayed fuel economy calculation result. Contents of th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60W10/10B60W10/06F16H63/42B60W10/04B60K35/00B60W10/11F02D29/00F02D45/00F16H59/74F16H61/00F16H61/02
CPCF16H2061/0015Y02T10/76F16H2061/0216F16H59/74F16H63/42F16H61/0213F16H2061/022
Inventor 南克明
Owner MIYAMA