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131. 发明专利

JPH0292470A ROLL SPOT WELDING MACHINE 失效
公开(公告)号：JPH0292470A
公开(公告)日：1990-04-03
申请号：JP24655488
申请日：1988-09-30
申请人： TOYOTA MOTOR CORP , KITO KOGYO KK
发明人： HONDA SATOSHI , NARITA HIDEO , MATSUO MASASHI , MAKIHARA HIDENORI , MATSUMOTO FUMIO , YAMAMOTO TAKAYUKI
IPC分类号： B23K11/06
摘要： PURPOSE:To execute satisfactory spot welding by constituting the title welding machine so that when one electrode abuts on an object to be welded, the other electrode follows up the one electrode direction, and always inserting and holding the object to be welded by prescribed pressing force. CONSTITUTION:By a movable arm 37, a pair of electrodes 2, 3 move to a position for inserting and holding an object to be welded. Subsequently, a cylinder 18 operates, a piston rod 18a elongates and one electrode 2 abuts on the object to be welded. Also, when the rod 18a advances, back pressure is generated, the cylinder head 18 moves to the upper part, and moves an electrode head 7 to the upper part through brackets 51, 52. The other electrode 3 moves from the lower part and by a pair of electrodes 2, 3, the object to be welded is inserted and held by prescribed pressing force. A pair of electrodes 2, 3 are guided along a weld line of the object to be welded by the robot arm 37, while executing an electric conduction, and execute desired roll spot welding. In such a way, even if a pair of electrodes are worn out and a pressure point of the electrode is deflected, the object to be welded is always inserted and held by prescribed pressing force and satisfactory welding can be executed.

132. 发明专利

JPH0292469A ROLL SPOT WELDING MACHINE 失效
公开(公告)号：JPH0292469A
公开(公告)日：1990-04-03
申请号：JP24655388
申请日：1988-09-30
申请人： TOYOTA MOTOR CORP , KITO KOGYO KK
发明人： HONDA SATOSHI , NARITA HIDEO , MATSUO MASASHI , MAKIHARA HIDENORI , MATSUMOTO FUMIO , YAMAMOTO TAKAYUKI
IPC分类号： B23K11/06
摘要： PURPOSE:To execute satisfactory welding even if an electrode is worn out by connecting one electrode to a piston rod of a cylinder, and connecting the other electrode to the cylinder body, and also, connecting it to a sliding body which is fitted so as to be freely slidable to a guide member attached to a movable arm. CONSTITUTION:When a pair of electrodes 2, 3 move to a position where an object to be welded can be inserted and held, a cylinder 18 operates and elongates a piston rod 18a, the electrode 2 abuts on the object to be welded, and moves to the electrode 3. In this case, back pressure is generated and the electrode 3 connected to a pressure cylinder 18 moves to the upper part, and the object to be welded is inserted and held by a pair of electrodes 2, 3. This back pressure works until electrode pressing force of the electrode 2, 3 becomes equal. The electrodes 2, 3 are guided along a weld line of the object to be welded by a robot arm (movable arm) 37, while executing an electric conduction, and execute roll spot welding. In such a way, even if a pair of electrodes are worn out and an electrode pressure point is deflected, satisfactory roll spot welding can be executed without damaging the object to be welded.

133. 发明专利

JP2003104139A DEVICE FOR DETECTING TIRE ACTING FORCE 审中-公开
公开(公告)号：JP2003104139A
公开(公告)日：2003-04-09
申请号：JP2002156413
申请日：2002-05-29
申请人： TOYOTA MOTOR CORP
发明人： ISONO HIROSHI , MIZUTANI KYOJI , YAMAMOTO TAKAYUKI
IPC分类号： G01L25/00 , B60R16/02 , B60T8/172 , B60T8/1761 , B60T8/58 , B60T8/88 , B60W40/068 , B60W40/10 , B60W50/02 , G01L5/16
摘要： PROBLEM TO BE SOLVED: To determine whether a detected value of tire acting force is abnormal or not in a device for detecting tire acting force acting on a tire of a vehicle. SOLUTION: This device includes a detector 10 for detecting the tire acting force fixed to a wheel and a detection section 14 for determining whether the detected force of the tire acting force by the detector is abnormal or not on the basis of at least one of a detected value of the detector or the time-varying trend.

134. 发明专利

JP2002200975A BRAKE DEVICE 失效
公开(公告)号：JP2002200975A
公开(公告)日：2002-07-16
申请号：JP2000402218
申请日：2000-12-28
申请人： TOYOTA MOTOR CORP
发明人： ISONO HIROSHI , YAMAMOTO TAKAYUKI , MIZUTANI KYOJI
IPC分类号： B60T8/94 , B60T8/42 , B60T11/28
摘要： PROBLEM TO BE SOLVED: To continue a control by a brake hydraulic control device even if a master shutoff valve faultily fails to open. SOLUTION: In a state that mater shutoff valves 94 and 96 are shut off, the hydraulic pressure of brake cylinders 14 and 16 is controlled to a value higher than the hydraulic pressure of master cylinders. When the master shutoff valves 94 and 96 faultily fail to open, the high-pressure hydraulic fluid is returned from a hydraulic control cylinder 12 to the mater cylinder 10, and pressurizing pistons 36 and 38 are returned to retreat end positions. Flow-out of the hydraulic fluid from pressurization chambers 36 and 38 to a reservoir 54 is allowed, and the hydraulic pressure at a master cylinder side in relation to the flow-out hindrance valves 148 and 150 becomes high. The flow-out hindrance valves 148 and 150 are switched to the shutoff condition to hinder the flow-out of the hydraulic fluid from the pressurization chambers 36 and 38 to the reservoir 54. As a result, the control of the brake hydraulic pressure by the hydraulic control cylinder 12 can be continuously performed.

135. 发明专利

JP2002200973A BRAKE DEVICE 失效
公开(公告)号：JP2002200973A
公开(公告)日：2002-07-16
申请号：JP2000402219
申请日：2000-12-28
申请人： TOYOTA MOTOR CORP
发明人： ISONO HIROSHI , YAMAMOTO TAKAYUKI , MIZUTANI KYOJI
IPC分类号： B60T8/40 , B60T13/12
摘要： PROBLEM TO BE SOLVED: To utilize the hydraulic pressure of a master cylinder in a brake device provided with a hydraulic control cylinder to be operated on the basis of the operation of an electric motor. SOLUTION: In the hydraulic control cylinder 12, a rear hydraulic pressure chamber 128 and a pressurization chamber 36 of the master cylinder 10 are directly communicated to each other by a liquid passage 130. A driving force by a control motor 100 and a driving force corresponding to the hydraulic pressure of the rear hydraulic pressure chamber 128 are applied to a control piston 106, and the hydraulic pressure of a control pressure chamber 120 is controlled to a corresponding height. With this structure that the hydraulic pressure of the master cylinder can be utilized, in the case of controlling the hydraulic pressure of the control pressure chamber 120 at a constant value, a current to be supplied to the control motor 100 can be reduced.

136. 发明专利

JP2002115732A BRAKE DEVICE ACTUATOR AND BRAKE DEVICE 失效
公开(公告)号：JP2002115732A
公开(公告)日：2002-04-19
申请号：JP2001070757
申请日：2001-03-13
申请人： ASMO CO LTD , TOYOTA MOTOR CORP
发明人： KIKUTA TOMOYUKI , UENO NAOKI , YAMAMOTO TAKAYUKI
IPC分类号： F16D65/22 , F16H35/00 , F16D65/27
摘要： PROBLEM TO BE SOLVED: To provide a brake device actuator capable of further reducing the number of parts and certainly preventing an abnormal engagement of a racing prevention mechanism without increasing an output of an electric switch means. SOLUTION: When a regulation gear 32 is arranged at a non-engagement position where it is not engaged with a pinion 25 at the time of traveling of vehicle, a controller continuously applied a small operation maintaining voltage Vrun of a degree that the engagement of the regulation gear 32 and the pinion caused by a vibration and a shock at the time of traveling of vehicle is not generated to a switching motor 31 so as to maintain the regulation gear 32 to the position.

137. 发明专利

JP2002087233A CONTROL DEVICE OF VEHICULAR BRAKE 失效
公开(公告)号：JP2002087233A
公开(公告)日：2002-03-27
申请号：JP2000278628
申请日：2000-09-13
申请人： TOYOTA MOTOR CORP , DENSO CORP
发明人： YAMAMOTO TAKAYUKI , SAWADA NAOKI
IPC分类号： B60T8/17 , B60T8/00
摘要： PROBLEM TO BE SOLVED: To optimize holding torque at parking brake time, and to avoid useless energy consumption by an actuator. SOLUTION: This control device of a brake is provided with an electric motor 23 for applying rotation checking torque for resisting rotation of wheels by pressing a braking member (a brake shoe 22) to a braking object member (a drum 21) integrally rotating with the wheels, a service brake control means for applying the rotation checking torque at service brake time by controlling an electric current supplied to the electric motor according to an operation quantity of a brake pedal 60 and a parking brake control means for applying the rotation checking torque parking brake time by controlling the electric current supplied to the electric motor according to operation indication of a parking brake. The parking brake control means sets the rotation checking torque at parking brake time on the basis of actual rotation checking torque detected by a pressurizing force sensor 26 at service brake time.

138. 发明专利

JP2001106059A ELECTRIC PARKING BRAKE DEVICE 失效
公开(公告)号：JP2001106059A
公开(公告)日：2001-04-17
申请号：JP28691499
申请日：1999-10-07
申请人： TOYOTA MOTOR CORP
发明人： AZUMA NOBUTOMO , SHONO SHOICHI , YAMAMOTO TAKAYUKI , URABABA SHINGO
IPC分类号： B60T7/12 , B60T17/22
摘要： PROBLEM TO BE SOLVED: To estimate such a condition that a parking brake is not properly disconnected, and to carry out the control in accordance with this condition. SOLUTION: When the outside temperature T is low (the threshold value Tref or less), it is estimated that the condition is that the disconnection of the parking brake is not properly carried out due to freezing, and the operational treatment in the automatic parking brake control and the operational treatment of the parking brake based on the indication of an operation switch 66 is forbidden (S106), and the lighting of a warning lamp 78 and the sounding of a buzzer 80 are carried out (S108). As a result, such a condition that the disconnection of the parking brake can not be carried out due to freezing can be avoided. In addition, as the condition that the disconnection of the parking brake is not properly carried out, there are conditions or the like that the charging capacity of a battery for supplying electric power to an electric motor for operating or disconnecting the parking brake is low, and when such conditions are estimated, the operational treatment of the parking brake is similarly forbidden.

139. 发明专利

JP2001106057A ELECTRIC PARKING BRAKE DEVICE 失效
公开(公告)号：JP2001106057A
公开(公告)日：2001-04-17
申请号：JP28251999
申请日：1999-10-04
申请人： TOYOTA MOTOR CORP
发明人： SHONO SHOICHI , URABABA SHINGO , YAMAMOTO TAKAYUKI , AZUMA NOBUTOMO
IPC分类号： B60T17/22 , B60T7/02
摘要： PROBLEM TO BE SOLVED: To prevent the maloperation of a parking brake due to abnormality, and also to detect the abnormality of an operating switch indicating the operation and release of the parking brake. SOLUTION: When the operation of the operation switch indicating the operation and release of the parking brake is detected (S132), whether or not the operation or release of the parking brake by means of the operation of the operation switch is determined on the basis of an abnormality judging flag F whose value is made to be 1 when the abnormality of the operation switch is detected (S134 to S138). The abnormality of the operation switch is judged when the disagreement of the values of the respective systems is detected, if the continuous operation of the switch exceeding a prescribed time is detected, or if the switch is constituted as a duplex system switch. Even when the value of the abnormality judging flag F is 1, and when the treatment based on the operation of the operation switch is not carried out, the control treatment of the automatic parking brake is carried out (step S140).

140. 发明专利

JP2001106047A ELECTRIC PARKING BRAKE DEVICE 失效
公开(公告)号：JP2001106047A
公开(公告)日：2001-04-17
申请号：JP29111699
申请日：1999-10-13
申请人： TOYOTA MOTOR CORP
发明人： URABABA SHINGO , YAMAMOTO TAKAYUKI , SHONO SHOICHI , AZUMA NOBUTOMO
IPC分类号： B60T7/12 , B60T17/22
摘要： PROBLEM TO BE SOLVED: To automatically operate a parking brake in suitable timing in a vehicle loaded with a manual transmission. SOLUTION: This parking brake is automatically operated (S114) when a shift lever is operated into first gear, reverse or neutral in a state where a prohibiting signal SW for prohibiting the automatic operation of the parking brake by a driver is not turned on (S104, S106) and by the time the specified time passes after an ignition signal IG is turned off or when the ignition signal IG is turned off (S100 to S112) in a state where the shift lever is operated into first gear, reverse or neutral. Therefore, the driver's intension can be reflected, and the parking brake can be automatically operated in suitable timing.

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