EP0346764A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Apparatus for controlling throttle actuator
Assignee: Mitsubishi Electric Corp
•
Filing: 1989-06-08
•
Granted: —
•
Expires: 2009-06-08
Abstract
Abstract There is provided an apparatus for controlling a throttle actuator which detects the magnetic pole position of a rotor of a brushless motor connected to a throttle valve and drives the brushless motor in response to the detected magnetic pole position detecting signal. The apparatus is arranged to detect any fault in the magnetic pole position detecting signal and steppingly drive the brushless motor independently of the magnetic pole position detecting signal when a fault is detected.
Inventors
- 👤 Yasuya C/O Mitsubishi Denki K. K. Kajiwara
- 👤 Keiu C/O Mitsubishi Denki K. K. Kawasaki
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-30 14:38
CPC Classifications
F; F02; F02D; F02D41/00; F02D41/22; F02D41/20; F02D11/00; F02D11/06; F02D11/10; F02D11/107; F02D2011/101; F02D2011/102
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
82 words
An apparatus for controlling a throttle actuator which detects the magnetic pole position of a rotor of a brushless motor connected to a throttle valve and drives said brushless motor in response to the detected magnetic pole position detecting signal, comprising a fault detecting means for detecting any fault in said magnetic pole position detecting signal and means responsive to said detected signal for steppingly driving said brushless motor independently of said magnetic pole position detecting signal when a fault is detected.
Claim 2
Independent Claim
82 words
An apparatus for controlling a throttle actuator which detects the magnetic pole position of a rotor of a brushless motor connected to a throttle valve and drives said brushless motor in response to the detected magnetic pole position detecting signal, comprising a fault detecting means for detecting any fault in said magnetic pole position detecting signal and means responsive to said detected signal for steppingly driving said brushless motor independently of said magnetic pole position detecting signal when a fault is detected.
Claim 3
Independent Claim
125 words
An apparatus for controlling a throttle actuator comprising: means for detecting the position of a plurality of magnetic poles of a rotor of a brushless motor and providing a magnetic pole position signal; a first signal generating means for generating pulses to drive a stator winding of said brushless motor in accordance with the magnetic pole position signal provided by said detecting means; a second signal generating means for generating pulses to drive the stator winding independently of said first signal generating means; means for determining whether or not said magnetic pole position signal is normal; and a switching means responsive to said determining means for selecting one of said first signal generating means and said second signal generating means to drive the stator winding.
Claim 4
Independent Claim
125 words
An apparatus for controlling a throttle actuator comprising: means for detecting the position of a plurality of magnetic poles of a rotor of a brushless motor and providing a magnetic pole position signal; a first signal generating means for generating pulses to drive a stator winding of said brushless motor in accordance with the magnetic pole position signal provided by said detecting means; a second signal generating means for generating pulses to drive the stator winding independently of said first signal generating means; means for determining whether or not said magnetic pole position signal is normal; and a switching means responsive to said determining means for selecting one of said first signal generating means and said second signal generating means to drive the stator winding.
Claim 5
Dependent Claim
17 words
The apparatus as recited in Claim 2 wherein: said detecting means comprises three magnetic pole detecting elements.
Claim 6
Dependent Claim
28 words
The apparatus as recited in Claim 3 wherein: said determining means finds a fault when output signals of the three magnetic pole detecting elements are substantially the same.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.