JPS6436551A - Device for controlling free rotation of wheel - Google Patents

Device for controlling free rotation of wheel

Info

Publication number
JPS6436551A
JPS6436551A JP19359187A JP19359187A JPS6436551A JP S6436551 A JPS6436551 A JP S6436551A JP 19359187 A JP19359187 A JP 19359187A JP 19359187 A JP19359187 A JP 19359187A JP S6436551 A JPS6436551 A JP S6436551A
Authority
JP
Japan
Prior art keywords
drive wheel
drive
wheel
detected
vehicle
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
Application number
JP19359187A
Other languages
Japanese (ja)
Inventor
Yasumichi Ohara
Yoshio Sasajima
Kenji Nakada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Signal Co Ltd
Original Assignee
Nippon Signal Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Signal Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP19359187A priority Critical patent/JPS6436551A/en
Publication of JPS6436551A publication Critical patent/JPS6436551A/en
Pending legal-status Critical Current

Links

Landscapes

  • Regulating Braking Force (AREA)

Abstract

PURPOSE:To securely prevent a drive wheel from freely rotating by comparing a detected signal of a drive wheel rpm of a vehicle with a detected signal of a relative speed of the vehicle signal respect to the ground and by controlling a drive motor so that the drive wheel is brought into traction contact with a rail based on the comparison signal. CONSTITUTION:Employing a wheel shaft rpm detector 7 for detecting the rpm of a drive wheel 3 and a speed detector 10 of the Doppler type or the like for detecting the relative speed of a vehicle 2 with respect to the ground 11, output signals from those detectors are inputted to a processing circuit 9. When the drive wheel 3 starts to freely rotate as a result of running acceleration, etc. and a frequency difference between the rotation-detected and speed-detected signals goes beyond a certain level, the processing circuit determines that free rotation has occurred. In that case, current to a drive motor 5 is controlled to be reduced via a motor control circuit 6. This causes the drive torque of the drive motor 5 to be reduced to bring the drive wheel 3 again into traction contact with a rail 1 and to prevent free rotation.
JP19359187A 1987-08-01 1987-08-01 Device for controlling free rotation of wheel Pending JPS6436551A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19359187A JPS6436551A (en) 1987-08-01 1987-08-01 Device for controlling free rotation of wheel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19359187A JPS6436551A (en) 1987-08-01 1987-08-01 Device for controlling free rotation of wheel

Publications (1)

Publication Number Publication Date
JPS6436551A true JPS6436551A (en) 1989-02-07

Family

ID=16310509

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19359187A Pending JPS6436551A (en) 1987-08-01 1987-08-01 Device for controlling free rotation of wheel

Country Status (1)

Country Link
JP (1) JPS6436551A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043613A (en) * 1989-08-10 1991-08-27 Asmo Co., Ltd. Built-up stepping motor

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4424726Y1 (en) * 1968-08-28 1969-10-18
JPS4993776A (en) * 1973-01-12 1974-09-06
JPS5172031A (en) * 1974-12-20 1976-06-22 Komatsu Mfg Co Ltd SURITSUPUKENSHUTSUSOCHI

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4424726Y1 (en) * 1968-08-28 1969-10-18
JPS4993776A (en) * 1973-01-12 1974-09-06
JPS5172031A (en) * 1974-12-20 1976-06-22 Komatsu Mfg Co Ltd SURITSUPUKENSHUTSUSOCHI

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5043613A (en) * 1989-08-10 1991-08-27 Asmo Co., Ltd. Built-up stepping motor

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