 Voltage regulator with non-linear excitation control |
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| Switching regulator |
| OF THE DRAWINGS FIG. 1 is a circuit view showing an embodiment of a switching regulator according ... |
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| Real time charging control of a fast battery charger |
| It is an object of the present invention to provide methods and circuits to terminate charging of a ... |
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| Life protector enclosure for mines |
| I claim: 1. An enclosure for use in underground mines to provide protection to miners in advance of,... |
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| Battery assembly |
| OF THE PREFERRED EMBODIMENT Referring to FIG. 1, the invention is incorporated in a remote ... |
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| Charging control system for uniformly charging a series connected battery array |
| An object of this invention is to provide a charging control system which is capable of uniformly ... |
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| Strategy to control battery state of charge based on vehicle velocity |
| OF THE PREFERRED EMBODIMENT The present invention relates to battery control systems. Although the ... |
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| Method and apparatus for estimating the service life of a battery |
| OF THE PREFERRED EMBODIMENTS FIG. 1 is a schematic diagram of a novel circuit (e.g., service life ... |
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| Automotive electric power supply assembly |
| The present invention aims to solve the above problems and an object of the present invention is to ... |
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AC generator control apparatus for a motor vehicle
| Details |
Inventors: Watanabe, Hirofumi;
Assignee: Mitsubishi Denki Kabushiki Kaisha (Tokyo, JP)
Primary Examiner: Stephan; Steven L.
Assistant Examiner: Ponomarenko; Nicholas
Attorney, Agent or Firm: Sughrue, Mion, Zinn, Macpeak & Seas
An AC generator control apparatus for a motor vehicle includes an AC generator driven by an engine for generating an output voltage for charging an onboard battery, a rotation sensor for detecting an engine rotation number, a shift position sensor for detecting a shift position indicating a gear ratio of a transmission, and a control means responsive to the engine rotation number information to change stepwise with fine control the output voltage of the generator in depending on the gear shift positions within a predetermined range of engine rotation numbers. Not only the battery charge efficiency, but also the running performance and fuel efficiency of the motor vehicle can be enhanced with high reliability, while ensuring improved braking performance. |
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DETAILED DESCRIPTION In the light of the state of the art described above, it is an object of the present invention to provide an AC generator control apparatus for a motor vehicle which can enhance the battery charging efficiency, the running performance, and the fuel cost performance of the motor vehicle while ensuring improved braking performance with high reliability.
Another object of the present invention is to provide an AC generator control apparatus for a motor vehicle which is capable of enhancing the battery charging efficiency above all.
It is yet another object of the present invention is to provide a novel AC generator control apparatus for a motor vehicle which can ensure improved running performance as well as improved fuel cost performance of the motor vehicle.
In view of the above and other objects which will become apparent as the description proceeds, there is provided according to a general aspect of the present invention an AC generator control apparatus for a motor vehicle, which apparatus includes an electric generator driven by an internal combustion engine of the motor vehicle for generating an output voltage for charging an onboard battery of the motor vehicle, an engine rotation sensor for detecting rotation of the engine to thereby generate engine rotation information, a shift position sensor for detecting a currently effective one of shift positions for changing over gear ratios of a transmission, and a control means responsive to the engine rotation information for changing an output voltage of the electric generator in dependence on the currently effective shift position.
With the arrangement of the AC generator control apparatus described above, it is possible to change or regulate stepwise and finely the output voltage of the AC generator in dependence on the gear-ratio shift positions in a predetermined engine operation (rotation) state.
Thus, there is realized an AC generator control apparatus for the motor vehicle which can ensure improvement of the battery charge efficiency, running performance and the fuel cost performance of the motor vehicle while assuring excellent braking performance with high reliability
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Electrical and Wave 
