Patents Assigned to VDO Adolf Schindling AG
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Patent number: 5084698Abstract: In an indicator instrument, at least one light-emitting diode (8, 9) which lights up in different colors depending on the manner in which it is controlled is provided in a light guide (5). In this way, the pointer instrument can be illuminated in simple fashion in different colors, for instance as a function of the position of the pointer.Type: GrantFiled: December 8, 1989Date of Patent: January 28, 1992Assignee: VDO Adolf Schindling AGInventor: Gerhard Sell
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Patent number: 5076232Abstract: A load adjustment device is formed of a setting member, and a control element which acts on the setting member to establish a power output of an internal combustion engine, an accelerator pedal, via a driver coupled to the accelerator pedal, activates the control element. The adjustment device also incldues an electric setting drive for moving the driver, and an desired-value detection element operatively connected with the driver, as well as an actual-value detection element which cooperates with the desired-value detection element and acts upon the electric setting drive. The electric setting drive is controllable as a function of values detected by an electronic control device. The driver has a free-travel element which is mounted displaceably in a direction of setting of the free-travel element. The control element engages with play in its direction of setting in the free-travel element, and the free-travel element operates with the driver under spring loading.Type: GrantFiled: September 14, 1990Date of Patent: December 31, 1991Assignees: VDO Adolf Schindling AG, Mercedes Benz AGInventors: Manfred Pfalzgraf, Eberhard Mausner
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Patent number: 5071103Abstract: A desired-value transmitter (2) is flanged onto a throttle-valve connecting piece (1), the desired-value transmitter having a setting shaft (5) aligned with a throttle-valve shaft (3). The setting shaft (5) engages in rotatable manner via a pin (9) into a bearing bushing (11) which is also rotatably mounted within a mounting hole (10) in the throttle-valve shaft (3). In this way, capacity for rotation of the adjusting shaft (5) with respect to the throttle-valve shaft (3) is doubly assured. Supporting of the setting shaft within the housing is unnecessary on the side facing the throttle-valve shaft (3).Type: GrantFiled: January 18, 1991Date of Patent: December 10, 1991Assignee: VDO Adolf Schindling AGInventor: Thomas Hannewald
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Patent number: 5061085Abstract: In a thermostatic bimetallic measuring element, an adjustment lever (5) which bears a thermostatic bimetallic body (6) is held, on the one hand, by a collar (24) of a setting eccentric (12) and, on the other hand, by a holding section (14) which is formed on a section of the adjustment lever (5) which engages through a slot in a rear plate (1) of the thermostatic bimetallic element and rests against the back of the rear plate (1). By turning the setting eccentric (12), displacement of the adjustment lever (5) is possible around an imaginary of actual pivot shaft which engages into the slot.Type: GrantFiled: March 2, 1990Date of Patent: October 29, 1991Assignee: VDO Adolf Schindling AGInventors: Helmut Unfried, Gerhard Wesner
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Patent number: 5061893Abstract: The pointer shaft 1 of a rotary-magnet ratio meter is mounted by means of radial bearings (15 and 20 respectively) one near its pointer 2 and one at the end facing its rotary magnet 4. The lower radial bearing 20 arranged near the rotary magnet 4 is formed by a blind hole 16 into which the pointer shaft 1 engages and in which it rests on a metal ball 19. This metal ball 19 therefore forms a thrust bearing 20.Type: GrantFiled: June 14, 1990Date of Patent: October 29, 1991Assignee: VDO Adolf Schindling AGInventor: Franz Gutmann
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Patent number: 5059934Abstract: In a cross-coil rotary magnet device, a rotor (32) which is mounted rotatably together with a shaft (35) is formed of a permanent magnet (33) with diametrically opposite permanent magnet poles and a coil arrangement (10, 11) with coils which are arranged at an angular distance apart of, in particular, 90.degree.. For receiving the coils there is provided a coil body (14) which is divided into two parts (15, 16) and in which bearings (36, 37) of the shaft (35) of the rotor (32) are shaped in such a manner that the shaft protrudes out of the coil body at least one front outer end (12). One of the two parts (15, 16) of the coil body (14) has on this outer end tab-shaped clips (24-27) for the clamping attachment of an intermediate body (2). Bores (38-43) for connecting pins (4-7) are provided in the coil body parallel to the shaft (35). The cross-coil rotary magnet device can thus be adapted to numerous applications.Type: GrantFiled: August 4, 1989Date of Patent: October 22, 1991Assignee: VDO Adolf Schindling AGInventor: Roland Sudler
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Patent number: 5055782Abstract: A method determines the absolute position of a pointer in an indicating device in which the pointer is moved by a rotor (2) of a rotating-field (1) via a gearing (31). An indicating device is also disclosed. Indicating devices with gearing have the problem that no absolute reference between the position of the pointer (33) and the position of the rotor (2) in the rotating-field motor (1) is present when the device is started and the reference is lost. In order to restore the reference, the pointer (33) is moved by a rotating field in a rotating-field motor (1) in a predetermined direction of the rotating field against a stop (34). The rotating field is turned further in the direction of the rotating field.Type: GrantFiled: May 31, 1990Date of Patent: October 8, 1991Assignee: VDO Adolf Schindling AGInventor: Klaus Kronenberg
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Patent number: 5052507Abstract: A load-adjustment device for the internal combustion engine of an automotive vehicle has a control lever (1) which, for instance, displaces a throttle valve and is held by a coupling spring (9) against an intermediate lever (5) which can be swung directly by the accelerator pedal (3). A damping device (11) is so developed that, upon a sudden movement of the intermediate lever (5) in the direction of full load, the control lever (1) follows this movement only with a time lag action so that the automative vehicle is not accelerated with excessive jerk.Type: GrantFiled: August 18, 1989Date of Patent: October 1, 1991Assignee: VDO Adolf Schindling AGInventors: Jurgen Luft, Eckhart Kern
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Patent number: 5054009Abstract: In a motor, in particular for the electrical driving of a clockwork, a rotor (32) which is mounted rotatably together with a shaft (3) consists of a permanent magnet having diametrically opposite permanent magnet poles. A coil arrangement in the motor comprises two coils (10 and 11) arranged at angular distances of, in particular, 90.degree. apart from each other.Type: GrantFiled: August 4, 1989Date of Patent: October 1, 1991Assignee: VDO Adolf Schindling AGInventor: Roland Sudler
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Patent number: 5046825Abstract: In a liquid crystal cell having metallic conductor paths which serve as feed lines to picture electrodes, the metallic conductor paths are provided with an interference layer. This layer can consist of a material which forms the picture electrodes.Type: GrantFiled: August 24, 1990Date of Patent: September 10, 1991Assignee: VDO Adolf Schindling AGInventor: Werner Fertig
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Patent number: 5047761Abstract: In a pointer instrument, a light guide (3) serves as support for electronic components (7). The light guide (3) therefore assumes the function of a printed circuit board. The electronic components (7) are preferably arranged on the outer wall surface (6) of the light guide (3) which is developed in the shape of a conical frustum so that space which is in any event present in the housing can be used for them. The light guide serves to illuminate a dial of the instrument.Type: GrantFiled: December 8, 1989Date of Patent: September 10, 1991Assignee: VDO Adolf Schindling AGInventor: Gerhard Sell
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Patent number: 5038733Abstract: A load adjustment device, by which the power of an internal combustion engine can be regulated, has a driver (4) which is coupled to an accelerator pedal (1) and cooperates via a regulating element with a setting member (9) which determines the output of the internal combustion engine. The setting member has a first regulating-element part (8a) and a second regulating-element part (8b) which can be disconnected from each other in order, in this way, to be able to control the setting member (9) independently of the driver (4) via an electric setting drive (14). Within the second regulating-element part (8b) there is contained, in accordance with the invention, a step-up device (torque converters 30a, 30b) for the setting-drive-side movement.Type: GrantFiled: August 16, 1990Date of Patent: August 13, 1991Assignee: VDO Adolf Schindling AGInventor: Helmut Westenberger
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Patent number: 5036813Abstract: A load-shifting device has a control element (8a, 8b) which acts on a setting member 9 which determines the output of an internal combustion engine. A control element cooperates with a driver (4) which is coupled to an accelerator (1). The driver is controllable in addition by means of an electrical setting drive 14 which cooperates with an electronic controller (17). In the load-shifting device, a setting path of the driver in idling direction is limited by an idling stop (LL). Upon application of the driver against the idling stop, the control element is movable in its idling control range relative to the driver by means of the electric setting drive. With a simple structural development the load-shifting device makes it possible to control the internal combustion engine over its entire load range and, in particular, by means of the electrical setting drive, over its idling range.Type: GrantFiled: December 22, 1989Date of Patent: August 6, 1991Assignee: VDO Adolf Schindling AGInventors: Manfred Pfalzgraf, Gerd Hickmann, Eberhard Mausner
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Patent number: 5036816Abstract: In a throttle-valve connection (1), two intake channels (2, 3) are provided alongside of each other, each having a throttle valve (4, 5). The two throttle valve (4, 5) are driven by separate setting motors (17, 18). The setting shaft (6, 7) of the throttle valve (4, 5) are connected to each other by an entrainment connection (8) which has play. Sliding clutches (9, 10) permit rotation of the throttle valve (6, 7) in the direction towards idling even if the gearing (11, 12) or setting motor (17, 18) is blocked.Type: GrantFiled: February 23, 1990Date of Patent: August 6, 1991Assignee: VDO Adolf Schindling AGInventor: Arnold Mann
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Patent number: 5035222Abstract: A system with which a correction of the fuel composition upon a change in the state of load of an internal combustion engine with which a mixture-forming device (4, 6, 8, 9, 11) is associated is constructed in structurally simple manner. The mixture-forming device has a feed unit (6) for the fuel with an inlet-side fuel conveyor line (5) and a discharge-side fuel conveyor line (7) and a movably mounted feed member (18). Depending on the position of the feed member (18), the feed member (18) provides variable fuel passage cross-sections in the feed unit (6). The feed unit is connected via an opening (31) which is closed in sealing fashion by a movable equalization element (33), the equalization space (32) being connected via a branch line (34) to the discharge-side fuel conveyor line.Type: GrantFiled: December 1, 1989Date of Patent: July 30, 1991Assignee: VDO Adolf Schindling AGInventor: Martin Feldinger
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Patent number: 5035213Abstract: A load-shifting device has a control element (4a, 4b) which acts on a setting member (7,9) which determines the output of an internal combustion engine. The control element is adapted to be connected to an accelerator (1) and is controllable by an electric setting drive (10) which cooperates with an electronic controller (12). The load-shifting device provides that the setting member includes a main setting member (7) with which there is associated a first control-element part 4a which is coupled with the accelerator. The setting member further includes an auxiliary setting member (9) with which there is associated a second control-element part (4b). The setting path of the first control-element part is limited in idling direction by an idle stop (LL). The second control-element part can, upon application of the first control-eleemnt part against the idling stop, be moved within its idling control range relative to the first control-element part by the electric setting drive.Type: GrantFiled: December 22, 1989Date of Patent: July 30, 1991Assignee: VDO Adolf Schindling AGInventors: Manfred Pfalzgraf, Gerd Hickmann, Eberhard Mausner
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Patent number: 5033438Abstract: A method for improving the exhaust-gas behavior of mixture-compressing internal combustion engines. The output signal of an oxygen measurement probe arranged in the exhaust gas channel of the internal combustion engine is divided within the voltage region in question into a number of sections and a corrected voltage value is stored in a memory for each section.Type: GrantFiled: August 31, 1990Date of Patent: July 23, 1991Assignee: VDO Adolf Schindling AGInventors: Martin Feldinger, Joachim Tambosi, Uwe Marz
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Patent number: 5032781Abstract: In a method and circuit for operating a stepping motor having several windings, and wherein a movement of the stepping motor induces a voltage in a winding which is not required at the time for generating a propulsive force, the induced voltage is evaluated. After the stepping motor is connected, the stepping motor is operated in a predetermined direction, whereupon a stopping of the stepping motor is detected by the absence of the induced voltage. A memory containing the instantaneous position of the stepping motor is then set to a predetermined value.Type: GrantFiled: February 2, 1990Date of Patent: July 16, 1991Assignee: VDO Adolf Schindling AGInventor: Klaus Kronenberg
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Patent number: 5029564Abstract: A fuel-air-mixture-forming device for an internal combustion engine, has a nozzle body (2) of rotational symmetry which, together with a throttle body (7) of rotational symmetry which is displaceable in the nozzle body, forms a convergent-divergent nozzle (10) which debouches into an intake pipe of the internal combustion engine. A fuel air slot (11) surrounds the convergent-divergent nozzle and debouches via a circumferential slot opening (12) into the nozzle. Fuel mixed with air is injected from the slot opening into the nozzle via a direction approximately transverse to the direction of the main air mass flow (L). In order to obtain an equalization of the closing forces caused by the vacuum on the throttle body, in accordance with the invention, the throttle body has an inner space (27) which is closed off from the nozzle and is provided with at least one pressure equalization cutout (28) which connects the nozzle with the inner space.Type: GrantFiled: September 10, 1990Date of Patent: July 9, 1991Assignee: VDO Adolf Schindling AGInventor: Uwe Neutzer
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Patent number: 5027766Abstract: A load adjustment device is provided having a throttle valve which determines the output of an internal combustion engine and is connected, fixed for rotation, to a throttle-valve shaft (32) which is mounted in a throttle-valve-shaft housing (30). The shaft has an acceleration-pedal side mechanical articulation side (33) and a setting-motor articulation side (34) with which there is associated a coupling element (45) for the mechanical uncoupling of the throttle-valve shaft from the setting motor within a defined angular region of the throttle valve; furthermore, a device is provided for reporting the instantaneous position of the coupling element to an electronic control device.Type: GrantFiled: May 31, 1990Date of Patent: July 2, 1991Assignee: VDO Adolf Schindling AGInventors: Matthias Zentgraf, Gerd Hickmann