JPS6436526A - Switching control device for 4-wheel-drive vehicle - Google Patents
Switching control device for 4-wheel-drive vehicleInfo
- Publication number
- JPS6436526A JPS6436526A JP19184587A JP19184587A JPS6436526A JP S6436526 A JPS6436526 A JP S6436526A JP 19184587 A JP19184587 A JP 19184587A JP 19184587 A JP19184587 A JP 19184587A JP S6436526 A JPS6436526 A JP S6436526A
- Authority
- JP
- Japan
- Prior art keywords
- vibration
- road surface
- vehicle
- road
- level
- 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.)
- Pending
Links
Landscapes
- Arrangement And Mounting Of Devices That Control Transmission Of Motive Force (AREA)
Abstract
PURPOSE:To enable the optical running in accordance with a road surface condition to be automatically ensured by detecting the vibration of a vehicle while deciding the road surface condition to be a bad road, when the vibration in a certain level or more continues in running for the predetermined time or more, and controlling the vehicle so as to automatically switch its operation of 2WD to 4WD. CONSTITUTION:While a vehicle is in running, a vehicle vibration detecting means 51 in a control circuit 50 detects a level of vibration from a moving stroke of a suspension detected by a stroke sensor 44. Next a road surface condition decision means 52 compares the detected vibration with the preset vibration level from a setting means 53, deciding a road surface to be bad when the vibration increases to the preset vibration level or more. And setting a timer means 53 when the decision is made of the road surface changing from a good road to a bad road, generating a switching instruction when the time reaches the preset time and giving a switching signal from 2WD to 4WD to a driving circuit 55 from a switching means 54, a transfer is switched to a 4WD side by exciting a solenoid 32.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19184587A JPS6436526A (en) | 1987-07-31 | 1987-07-31 | Switching control device for 4-wheel-drive vehicle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19184587A JPS6436526A (en) | 1987-07-31 | 1987-07-31 | Switching control device for 4-wheel-drive vehicle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6436526A true JPS6436526A (en) | 1989-02-07 |
Family
ID=16281470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19184587A Pending JPS6436526A (en) | 1987-07-31 | 1987-07-31 | Switching control device for 4-wheel-drive vehicle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6436526A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003093047A1 (en) * | 2002-05-02 | 2003-11-13 | Ford Global Technologies, Llc. | Vehicle differential control |
US10166865B2 (en) | 2010-10-18 | 2019-01-01 | Ford Global Technologies, Llc | Automatic control of driveline states |
-
1987
- 1987-07-31 JP JP19184587A patent/JPS6436526A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2003093047A1 (en) * | 2002-05-02 | 2003-11-13 | Ford Global Technologies, Llc. | Vehicle differential control |
US7290634B2 (en) | 2002-05-02 | 2007-11-06 | Ford Global Technologies, Llc | Vehicle differential control |
US10166865B2 (en) | 2010-10-18 | 2019-01-01 | Ford Global Technologies, Llc | Automatic control of driveline states |
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