JPS5799451A - Brake warning device - Google Patents
Brake warning deviceInfo
- Publication number
- JPS5799451A JPS5799451A JP17434380A JP17434380A JPS5799451A JP S5799451 A JPS5799451 A JP S5799451A JP 17434380 A JP17434380 A JP 17434380A JP 17434380 A JP17434380 A JP 17434380A JP S5799451 A JPS5799451 A JP S5799451A
- Authority
- JP
- Japan
- Prior art keywords
- output
- warning
- brake
- turned
- speed sensor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Valves And Accessory Devices For Braking Systems (AREA)
- Braking Arrangements (AREA)
Abstract
PURPOSE: To prevent an unnecessary warning by determining whether or not the output of brake warning is generated on the basis of the output of a vehicle speed sensor in a brake warning device for warning when the vehicle travels with a side brake being not released.
CONSTITUTION: When a parking brake switch PBS is turned on, an ignition switch IGS is turned on. When an automobile starts and its speed exceeds 3km/h for example, the output of a vehicle speed sensor SPS is sent to a comparator CPM2 through a wave form shaping circuit WS and a frequency/voltage converting circuit FVC, and said comparator generates the output "1". Then, the pulse "1" is applied to the input of an NAND gate G1 by a differentiation circuit consisting of a capacitor C2 and resistance R2, and the outputs of G1, G2 become respectively "0", "1" and the output of G3 becomes "0". As a result, an alarm ALM makes a speaker SP produce a warning sound to warn an driver of a side brake being applied.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17434380A JPS5799451A (en) | 1980-12-10 | 1980-12-10 | Brake warning device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17434380A JPS5799451A (en) | 1980-12-10 | 1980-12-10 | Brake warning device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5799451A true JPS5799451A (en) | 1982-06-21 |
JPS6357265B2 JPS6357265B2 (en) | 1988-11-10 |
Family
ID=15976974
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17434380A Granted JPS5799451A (en) | 1980-12-10 | 1980-12-10 | Brake warning device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5799451A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4614932A (en) * | 1982-11-17 | 1986-09-30 | Nippon Soken, Inc. | Alarm system for the unexpected release of a brake in a vehicle |
US6166631A (en) * | 1998-06-04 | 2000-12-26 | Ford Global Technologies, Inc. | Method and apparatus for alerting a vehicle driver of an operating condition |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH063872U (en) * | 1992-06-23 | 1994-01-18 | 信雄 織田 | Structure of packing protective equipment |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5031889U (en) * | 1973-07-16 | 1975-04-08 |
-
1980
- 1980-12-10 JP JP17434380A patent/JPS5799451A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5031889U (en) * | 1973-07-16 | 1975-04-08 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4614932A (en) * | 1982-11-17 | 1986-09-30 | Nippon Soken, Inc. | Alarm system for the unexpected release of a brake in a vehicle |
US6166631A (en) * | 1998-06-04 | 2000-12-26 | Ford Global Technologies, Inc. | Method and apparatus for alerting a vehicle driver of an operating condition |
Also Published As
Publication number | Publication date |
---|---|
JPS6357265B2 (en) | 1988-11-10 |
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