Apparatus and method for recording motor vehicle travel information

• US 5,862,500 A
• Filed: 04/16/1996
• Issued: 01/19/1999
• Est. Priority Date: 04/16/1996
• Status: Expired due to Fees

• Current Assignee: Tera Tech Incorporated
• Original Assignee: Tera Tech Incorporated
• Inventors: Goodwin, Joel G.
• Primary Examiner(s): NGUYEN, TAN QUANG
• Application Number:
  US08/633,130
• Time in Patent Office: 1,008 Days
• Field of Search: 364/424.04, 364/424.034, 364/424.035, 364/424.038, 364/551.01, 364/561, 340/438, 340/439, 340/434, 340/458, 340/461, 340/462, 340/471, 701/35, 701/29, 701/30, 701/33
• US Class Current: 701/35
• CPC Class Codes: G01C 22/02 by conversion into electric waveforms and subsequent integration, e.g. using tachometer generator G01C22/002, G01C22/004, G01C22/006 take precedence
• CPC Class Codes: G07C 5/085 using electronic data carriers

Abstract

A vehicle trip recording apparatus collects trip data for manipulation by a separate computer. The computer software contains all the required controls and data manipulation programs for the trip recording device. The trip recording device contains only the hardware to collect and save distance pulses, current time and date, to talk with the computer, and a two button command interface. Of the two button command interface, one of the buttons selects between automatic or manual mode. The second button is a push type and performs the start/stop trip function when the first button is in the manual position. When the first button is in the automatic position, the second button preforms the start/stop calibrate function. Once the trip data has been downloaded into the computer, the trip data can be formatted, printed and saved with the separate computer.

Claims

1. An apparatus for collecting vehicle trip data relating to the distance traveled by a motor vehicle, the apparatus comprising:

(a) distance input means for receiving a plurality of distance pulses from a pulse generator associated with the motor vehicle, each distance pulse relating to a distance traveled by the vehicle;

(b) a vehicle status input for receiving a vehicle enabled signal when the vehicle is enabled for travelling and for receiving a vehicle disabled signal when the vehicle is disabled for travelling;

(c) a start/stop switch operative to produce a start/stop signal when activated by an operator;

(d) a mode input switch having a manual mode position and an automatic mode position, the mode input switch being operative to produce a manual mode signal when in the manual position and an automatic mode signal when in the automatic mode position;

(e) data storage means for storing trip data, including a distance traveled by the vehicle;

(f) processor means operatively connected to the start/stop switch, mode input switch, and data storage means, the processor means for receiving distance pulses from the distance input means, for producing manual mode trip data between a first start/stop signal and a second start/stop signal in response to the vehicle enabled signal and the manual mode signal and then for storing the manual mode trip data in the data storage means in response to the second start/stop signal, for producing automatic mode trip data continuously in response to the vehicle enabled signal and the automatic mode signal and then for storing the automatic mode trip data in the data storage means in response to the vehicle disabled signal, and for selectively retrieving trip data from the data storage means;

(g) data interface means associated with the processor means for transferring operational data to the processor means from an external computer and for transferring trip data from the processor means to the external computer; and

(h) power input means for providing operational power to the vehicle status input, start/stop switch, mode input switch, data storage means, processor means, and data interface means.

2. The apparatus of claim 1 further comprising:

(a) a time of day clock operatively connected to the processor means for continuously providing a time of day and date signal and wherein the trip data also includes a start of trip time and date and an end of trip time.

3. The apparatus of claim 2 further comprising:

(a) a back-up battery operatively connected to drive the time and date clock; and

(b) a disconnect device mount on the apparatus for disconnecting the distance input means, the vehicle status input, and the power input from the vehicle in which the apparatus is mounted.

4. The apparatus of claim 1 further comprising:

(a) two connectors mounted on the apparatus that each include a distance input means connector, a vehicle status input connector, a power input connector, a ground input connector, a data input connector, and a data output connector.

5. The apparatus of claim 1 further comprising an LED operatively connected to the processor means and wherein the processor means is also for driving the LED to provide a different unique indicator signal when the processor is producing trip data, when the data storage means contains over a predetermined amount of data, and when the data storage means is full of data.

6. A method of collecting vehicle travel distance from a motor vehicle, the method comprising the steps of:

(a) receiving a plurality of distance pulses from a distance pulse generating device associated with the motor vehicle, each distance pulse relating to a distance traveled by the vehicle;

(b) receiving a vehicle enabled signal from the vehicle when the vehicle is enabled for travelling and receiving a vehicle disabled signal from the vehicle when the vehicle is disabled for travelling;

(c) producing manual mode trip data, including a distance traveled by the vehicle, during a time interval between a first start/stop signal and a second start/stop signal in response to the vehicle enabled signal and a manual mode signal from a mode input switch and then storing the manual mode trip data in a data storage device in response to the second start/stop signal;

(d) producing automatic mode trip data continuously in response to the vehicle enabled signal and an automatic mode signal from the mode input switch and then storing the automatic mode trip data in the data storage device in response to the vehicle disabled signal.

7. The method of claim 6 wherein the step of producing trip data includes producing date and time data at the start of a trip and a stop time at the end of a trip.

8. The method of claim 6 further comprising the steps of producing a different indicator signal with an LED when trip data is being produced, the data storage device contains over a predetermined amount of data, and the data storage is full of data.