Diagnostic device for vehicle

• US 9,384,602 B2
• Filed: 11/12/2014
• Issued: 07/05/2016
• Est. Priority Date: 11/12/2014
• Status: Active Grant

• Current Assignee: Henry C. Chu
• Original Assignee: Henry C. Chu
• Inventors: Chu, Henry C.
• Primary Examiner(s): BUTLER, RODNEY ALLEN
• Application Number:
  US14/538,988
• Publication Number:
  US 20160133068A1
• Time in Patent Office: 601 Days
• US Class Current: 1/1
• CPC Class Codes: G07C 2205/02 using a vehicle scan tool
• CPC Class Codes: G07C 5/0808 Diagnosing performance data testing of vehicles G01M17/00; testing of electrical installation on vehicles G01R31/005
• CPC Class Codes: G07C 5/0825 using optical means

Abstract

A diagnostic device for vehicle includes a housing having a display and a control panel, a control unit connected to the housing, a number of input sensors connected to the control unit for sending input signals to the control unit, and for displaying the input signals on the display, and a number of actuators connected to the control unit for being controlled and actuated by the control unit. The control unit includes an input interface circuit for connecting to the input sensors. The control unit includes an output operation circuit for connecting to the actuators.

Claims

1. A diagnostic device for vehicle comprising:

a housing including a display and a control panel provided thereon, said housing including a first attachment and a second attachment,

a power source connected to said housing,

a control unit connected to said housing, said control unit including an input interface circuit, a central processing unit, an analogue to digital converter connected to said input interface circuit, an output operation circuit,

a plurality of input sensors connected to said input interface circuit of said control unit for sending input signals to said control unit, and for displaying said input signals on said display,

a plurality of actuators connected to said output operation circuit of said control unit for being controlled and actuated by said control unit,

a plurality of first connectors for connecting said actuators to said first attachment selectively, and

a plurality of second connectors for connecting said input sensors to said second attachment selectively.

2. The diagnostic device as claimed in claim 1, wherein said first connectors are connected in series.

3. The diagnostic device as claimed in claim 1, wherein said second connectors are connected in series.

4. The diagnostic device as claimed in claim 1, wherein said control panel of said housing include a switch for switching and selecting either of three scan circuits:

a first scan circuit S1, a second scan circuit S2, a third scan circuit S3.

5. The diagnostic as claimed in claim 4, wherein said first scan circuit S1 is a normal mode, the second scan circuit S2 is a manual mode, and the third scan circuit S3 is a check resistance mode.