Patent Publication Number: US-2010117601-A1

Title: Device for revitalizing battery and enhancing ignition performance

Description:
TECHNICAL FIELD OF THE INVENTION 
     The present invention generally relates to devices for improving a motor vehicle&#39;s performance, and more particularly to a device capable of revitalizing lead-acid battery and enhancing the ignition performance of a motor vehicle simultaneously. 
     DESCRIPTION OF THE PRIOR ART 
     A conventional method to revitalize a lead-acid battery commonly found on a motor vehicle is to apply high-frequency pulses to the battery so as to electronically dissolve sulfation formations on the electrode plates of the battery back into the electrolyte solution. For example, U.S. Pat. No. 3,727,071 teaches such a technique. However, the 071 patent cannot tell what is the best frequency and power of the pulses for the battery and therefore applies pulses of a preset frequency. As such, it is quite often that the battery never gets revitalized or the battery is actually damaged and aging even faster. 
     On the other hand, a motor vehicle&#39;s ignition performance is highly related to the fuel economy of the engine of the motor vehicle. In addition to applying pulses to revitalize the motor vehicle&#39;s battery, if the pulses are superimposed on the direct-current voltage of the motor vehicle&#39;s battery, the ignition performance of the motor vehicle&#39;s engine could be enhanced as well. 
     SUMMARY OF THE INVENTION 
     A device for simultaneously revitalizing the battery and enhancing the ignition performance of a motor vehicle is provided herein. The device contains a pulse generation circuit, a frequency generation circuit, a voltage detection circuit, and a frequency control circuit. 
     The pulse generation circuit is connected to a positive terminal of a lead-acid battery of the motor vehicle, the frequency generation circuit, and the frequency control circuit. 
     The frequency generation circuit is connected to the voltage detection circuit, the frequency control circuit, and the pulse generation circuit. 
     The voltage detection circuit is connected to the positive terminal of the battery, the frequency generation circuit, and the frequency control circuit. 
     The frequency control circuit is connected to the voltage detection circuit, the frequency generation circuit, and the pulse generation circuit. 
     The foregoing objectives and summary provide only a brief introduction to the present invention. To fully appreciate these and other objects of the present invention as well as the invention itself, all of which will become apparent to those skilled in the art, the following detailed description of the invention and the claims should be read in conjunction with the accompanying drawings. Throughout the specification and drawings identical reference numerals refer to identical or similar parts. 
     Many other advantages and features of the present invention will become manifest to those versed in the art upon making reference to the detailed description and the accompanying sheets of drawings in which a preferred structural embodiment incorporating the principles of the present invention is shown by way of illustrative example. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a functional block diagram according to the present invention. 
         FIG. 2  is a circuit diagram showing a device according to an embodiment of  FIG. 1 . 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     The following descriptions are exemplary embodiments only, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description provides a convenient illustration for implementing exemplary embodiments of the invention. Various changes to the described embodiments may be made in the function and arrangement of the elements described without departing from the scope of the invention as set forth in the appended claims. 
     As shown in the functional block diagram of  FIG. 1 , a device according to the present invention contains a pulse generation circuit  13 , a frequency generation circuit  14 , a voltage detection circuit  15 , and a frequency control circuit  16 . A positive terminal  11  of a lead-acid battery of a motor vehicle is connected to the pulse generation circuit  13  and the voltage detection circuit  15 . A negative terminal  12  of the lead-acid battery is connected to ground. In addition to the positive terminal  11 , the pulse generation circuit  13  is also connected to the frequency generation circuit  14  and the frequency control circuit  16 . The frequency generation circuit  14 , on the other hand, is connected to the voltage detection circuit  15  and the frequency control circuit  16 , in addition to the pulse generation circuit  13 . The voltage detection circuit  15  is connected to the positive terminal  11  of the battery, the frequency generation circuit  14 , and the frequency control circuit  16 . The frequency control circuit  16  is connected to the voltage detection circuit  15 , the frequency generation circuit  14 , and the pulse generation circuit  13 . 
     As shown in  FIG. 2 , the pulse generation circuit  13  contains resistors R 1 , R 2 , R 4 , and a triode Q 1 . The frequency generation circuit  14  contains an integrated circuit U 1 , and capacitors C 1 , C 2 . The voltage detection circuit  15  contains triodes Q 2 , Q 3 , a light emitting diode LED 1 , diodes D 3 , D 4 , resistors R 5  to R 8 , R 11  and capacitors C 3 , C 4 . The frequency control circuit  16  contains an integrated circuit U 2 , capacitors C 5 , C 6 , and resistors R 9 , R 10 . 
     The operation principle of the device is as follows. When the voltage detection circuit  15  senses the voltage from the positive terminal  11  of the battery to be higher than a pre-determined threshold, it activates the frequency control circuit  16  to produce an oscillation frequency (which is controllable by voltage). The oscillation frequency is then used by the frequency generation circuit  14  to produce pulses of the desired frequency. The pulses are passed to the pulse generation circuit  13  via the coupling capacitor C 1 . The pulse generation circuit  13  then superimposes the pulses on the direct-current voltage of the battery. As such, the pulses on one hand could revitalize the battery during its recharge and, on the other hand, could enhance the ignition performance of the motor vehicle&#39;s engine, thereby achieving a better fuel efficiency. 
     While certain novel features of this invention have been shown and described and are pointed out in the annexed claim, it is not intended to be limited to the details above, since it will be understood that various omissions, modifications, substitutions and changes in the forms and details of the device illustrated and in its operation can be made by those skilled in the art without departing in any way from the spirit of the present invention.