Each of the disks 14, 15 comprises a central opening 16 having a diameter matching the diameter of the shaft 2. OC Steering columns 963 N. Enterprise st. Orange,Ca 92867 714 658-3093 Ask for Felipe MOBILE REPAIR SERVICE Our expert mobile repair service covers Orange County, Los Angeles County and Inland Empire Areas, call us for a quote at 714 658-3093 For this purpose, for example the electronic steering column lock system may comprise a control unit for controlling the applied voltage subject to a variable (for example the speed of a vehicle) which may be sensed by an external sensor coupled to the control unit. The concept described above can be extended to normal brakes or clutches by using the system provided by the invention with for example the difference that said shaft may be a shaft of a brake or a clutch. This issue does not affect steering or engine operation when the vehicle is already running. On the other hand, disks 14 because of its rotationary form closure with the housing 7 remain stationary. There are numerous further possibilities for preferred refinements, some of them will be described in the following: In a preferred embodiment the electronic steering column lock system comprises multiple disks of the first type, respectively being rotatory form locked to the housing with regard to the centerline of the shaft, and it comprises multiple disks of the second type, respectively being rotatory form locked to the shaft with regard to the centerline of the shaft, herein a first set comprising disks of the first type and a second set comprising disks of the second type are disposed on the same side of the electromagnet, wherein said disks of the first set and said disks of the second set being disposed alternating to each other, wherein the remaining disks of the first type (as a third set) and the remaining disks of the second type (as a fourth set) are disposed alternating to each other on the other side of the electromagnet, wherein with regard to each respective neighboring pair of disks comprising a disk of the first type and a disk of the second type it is provided: Preferably, each disk of the first type is slidable relative to the housing parallel to the centerline of the shaft, respectively, and each disk of the second type is slidable relative to the shaft parallel to the centerline of the shaft, respectively. endobj Accordingly, the invention provides a smart electronic steering column lock system using magnetorheological fluid. An electronic steering column lock system (1) comprising: a shaft (2), said shaft being a steering column shaft or said shaft being configured to be coupled to a steering column shaft, a housing (7), an electromagnet (3), being disposed at a fixed position inside the housing (7), at least one disk (14) of a first type being rotatory form locked to the housing (7)with regard to the centerline (23) of the shaft (2), at least one disk (15) of a second type being rotatory form locked to the shaft (2) with regard to the centerline (23) of the shaft (2), the disk (14) of the first type and the disk (15) of the second type being disposed adjacent to each other on a same side of the electromagnet (3) inside the housing (7), wherein at least one of said both adjacently disposed disks (14, 15) is movable in a direction parallel to the centerline (23) or both of said disks (14, 15) are movable in a direction parallel to the centerline (23), wherein a surface (31) of the disk (14) of the first type and a surface (32) of the disk (15) of the second type are facing each other, wherein the form of said surface (31) of the disk (14) of the first type and the form of the surface (32) of said disk (15) of the second type are designed so that spacings (33) remain between both of said surfaces (31, 32) if said surface (31) of the disk (14) of the first type and said surface (32) of the disk (15) of the second type are in slight contact to each other, said disk (14) of the first type and said disk (15) of the second type being made from ferromagnetic material or comprising ferromagnetic material, magnetorheological fluid (30) being kept in the housing (7), and the disk (14) of the first type and the disk (15) of the second type are immersed, in particular are completely immersed, in the magnetorheological fluid (30). 4 0 obj Regarding said two adjacently disposed disks it is preferred that both of them are movable in a direction parallel to the centerline of the shaft, respectively. In order to achieve the object, the present invention provides an electronic steering column lock system comprising: a shaft, said shaft being a steering column shaft or said shaft being configured to be coupled to a steering column shaft, a housing, an electromagnet, being disposed at a fixed position inside the housing, at least one disk of a first type being rotatory form locked to the housing with regard to the centerline of the shaft, at least one disk of a second type being rotatory form locked to the shaft with regard to the centerline of the shaft, the at least one disk of the first type and the at least one disk of the second type being disposed adjacent to each other on a same side of the electromagnet inside the housing, wherein a surface of the at least one disk of the first type and a surface of the at least one disk of the second type are facing each other, wherein the form (i. e. the shape) of said surface of the at least one disk of the first type and the form (i. e. the shape) of the surface of said at least one disk of the second type are designed so that spacings remain between both of said surfaces if said surface of the disk of said first type and said surface of said disk of the second type are in contact to each other, said at least one disk of the first type and said at least one disk of the second type being made from ferromagnetic material or comprising ferromagnetic material, magnetorheological fluid being kept in the housing, and the at least one disk of the first type and the at least one disk of the second type are immersed, in particular are completely immersed, in the magnetorheological fluid. After you replace steering column lock,you need to perform online programming for it.Or you can read out … Regarding said two disks adjacently disposed on the same side of the electromagnet it is preferred that both of its surfaces facing each other respectively have a shape which is rotation-symmetric with regard to a center axis of the respective disk. Regarding said two disks adjacently disposed on the same side of the electromagnet it is preferred that both of its surfaces which are facing each other have a tridimensional form. As we have noted, there are three common reasons as to why your steering wheel would lock up; you are using the wrong key, making frequent sharp turns, a power steering pump failure or an ignition lock. It is also preferred that said housing provides two rotary feedthroughs for the shaft, said feedthroughs being spaced apart from each other in a direction parallel to the centerline of the shaft, the shaft being fed through both of the feedthroughs. Free shipping. The term slight contact here has the meaning that due to such contact no force is transmitted. Preferably the electromagnet comprises a ferromagnetic core and a coil. For example, the braking pulses can be applied without direct contact between adjacent disks. We are proud to list acronym of ESCL in the largest database of abbreviations and acronyms. Nissan is conducting a Voluntary Service Campaign to replace the Electronic Steering Column Lock (Steering Lock Unit) on certain specific 2009 – 2010 model year Maxima and Altima vehicles. Such fluids it selves are known in the prior art. A benefit of the steering column actuator is it creates a lock to prevent the ignition key from being removed from the tumbler while the key is in the start, on, or accessory position. Privacy Policy Regarding said two disks adjacently disposed on the same side of the electromagnet it is possible that at least one of its surfaces which are facing each other has a shape which is rotation-symmetric with regard to a center axis of the respective disk. The original steering column lock actuator on certain vehicles fails when gear teeth wear out. Due to the combined squeezing and shearing effects that appear in the magnetorheological fluid upon activation, high frequency braking pulses can be applied, generating haptic responses in a steering wheel which is coupled to the electronic steering column lock system. If a person rotates the shaft 2 around the centerline 23 because of the rotationary form closure also disks 15 rotate about the centerline 23. Further, the electronic steering column lock system 1 may comprise one or more external sensors configured to sense a respective variable (for example the speed of a vehicle comprising the system). Upon activating the coil (i. e. the electromagnet), a magnetic field will be generated that will produce two effects: a first effect is that the said disks will be attracted by the core and hence will come closer to each other (for example by sliding in a direction parallel to the centerline of the shaft and/or, depending of the embodiment, by deforming) which will generate friction between the adjacent disks at its contact areas. One object of the present invention is to provide an improved electronic steering column lock system.
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