Speed alarm system for automotive vehicle
First Claim
1. A speed alarm system for an automotive vehicle, comprising:
- first means for producing a speed signal indicative of the actual speed of the vehicle;
processing means for;
(1) producing a first command speed signal indicative of a first command speed, (2) producing a speed width signal indicative of a predetermined speed width, (3) adding a value of said speed width signal to a value of said first command speed signal to produce a second command speed signal indicative of a second command speed defined by the added value, (4) producing a first output signal when a value of said speed signal exceeds the first command speed, and for maintaining it for a first predetermined alarm time, (5) producing a second output signal when the value of said speed signal exceeds the second command speed, and for maintaining it for a second predetermined alarm time, (6) producing a first command speed display signal indicative of the first command speed when the value of said speed signal exceeds the value of said first command speed signal and maintaining it until the value of said speed signal reaches the value of said second command speed signal or the value of said speed signal decreases below the value of said first command speed signal, (7) producing a second command speed display signal indicative of the second command speed when the value of said speed signal exceeds the value of said second command speed signal and maintaining said second command speed display signal while the value of said speed signal is maintained in a value larger than the value of said first command speed signal;
means responsive to said first and second output signals for generating first and second alarm sounds respectively; and
a single display means responsive to said first and second command speed display signals for producing different displays corresponding to said first and second command speeds, respectively.
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Accused Products
Abstract
In a speed alarm system for an automotive vehicle, a speed signal and a first command speed signal indicative of a first command speed are produced, and a speed width signal indicative of a predetermined speed width is produced. A value of the speed width signal is added to a value of the first command speed signal to produce a second command speed signal indicative of a second command speed. A first output signal is produced when a value of the speed signal exceeds the first command speed, and a second output signal is produced when a value of the speed signal exceeds the second command speed. First and second alarm sounds are generated in response to the first and second output signals for first and second predetermined alarm times respectively.
22 Citations
9 Claims
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1. A speed alarm system for an automotive vehicle, comprising:
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first means for producing a speed signal indicative of the actual speed of the vehicle; processing means for;
(1) producing a first command speed signal indicative of a first command speed, (2) producing a speed width signal indicative of a predetermined speed width, (3) adding a value of said speed width signal to a value of said first command speed signal to produce a second command speed signal indicative of a second command speed defined by the added value, (4) producing a first output signal when a value of said speed signal exceeds the first command speed, and for maintaining it for a first predetermined alarm time, (5) producing a second output signal when the value of said speed signal exceeds the second command speed, and for maintaining it for a second predetermined alarm time, (6) producing a first command speed display signal indicative of the first command speed when the value of said speed signal exceeds the value of said first command speed signal and maintaining it until the value of said speed signal reaches the value of said second command speed signal or the value of said speed signal decreases below the value of said first command speed signal, (7) producing a second command speed display signal indicative of the second command speed when the value of said speed signal exceeds the value of said second command speed signal and maintaining said second command speed display signal while the value of said speed signal is maintained in a value larger than the value of said first command speed signal;means responsive to said first and second output signals for generating first and second alarm sounds respectively; and a single display means responsive to said first and second command speed display signals for producing different displays corresponding to said first and second command speeds, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A speed alarm system for an automotive vehicle, comprising:
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means for producing a speed signal indicative of the actual speed of the vehicle; processing means for;
(1) producing a first command speed signal indicative of a first command speed, (2) producing a speed width signal indicative of a predetermined speed width, (3) adding a value of said speed width signal to a value of said first command speed signal to produce a second command speed signal indicative of a second command speed defined by the added value, (4) producing a first output signal when a value of said speed signal exceeds the first command speed, and for maintaining it for a first predetermined alarm time, (5) producing a second output signal when the value of said speed signal exceeds the second command speed, and for maintaining it for a second predetermined alarm time, (6) intermittently generating a first command speed display signal indicative of the first command speed in response to said first output signal, (7) intermittently generating a second command speed display signal indicative of the second command speed in response to said second output signal, and (8) producing a speed display signal indicative of the actual vehicle speed while said first and second output signals are not generated;means, responsive to said first and second output signals, for generating first and second alarm sounds respectively; and display means responsive to said first and second command speed display signals for intermittently displaying the first and second command speeds respectively, and further responsive to said speed display signal for displaying the actual vehicle speed when said first and second command speeds are not being displayed. - View Dependent Claims (9)
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Specification