EP3942131A1 - Schloss für ein kraftfahrzeug - Google Patents
Schloss für ein kraftfahrzeugInfo
- Publication number
- EP3942131A1 EP3942131A1 EP20714109.4A EP20714109A EP3942131A1 EP 3942131 A1 EP3942131 A1 EP 3942131A1 EP 20714109 A EP20714109 A EP 20714109A EP 3942131 A1 EP3942131 A1 EP 3942131A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- lock
- rotary latch
- switching
- switching means
- locking
- 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.)
- Withdrawn
Links
- 230000007246 mechanism Effects 0.000 claims abstract description 52
- 238000001514 detection method Methods 0.000 description 21
- 230000003111 delayed effect Effects 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 229940000425 combination drug Drugs 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B81/00—Power-actuated vehicle locks
- E05B81/54—Electrical circuits
- E05B81/64—Monitoring or sensing, e.g. by using switches or sensors
- E05B81/66—Monitoring or sensing, e.g. by using switches or sensors the bolt position, i.e. the latching status
Definitions
- the invention relates to a lock for a motor vehicle having a locking mechanism with a rotary latch and at least one pawl, the rotary latch being latched in at least one detent position by means of the pawl, a lock holder, the rotary latch by means of the lock holder and a relative movement between the lock holder and the Rotary latch can be transferred from an open position to the latching position and a switching means tel, at least one main latching position of the rotary latch can be detected by means of the switching means.
- airbags are triggered by sensors in the motor vehicle and switching means and / or sensors monitor the position of the doors, to name just a few examples.
- sensors in the motor vehicle and switching means and / or sensors monitor the position of the doors, to name just a few examples.
- flaps, hoods or covers In order to keep the position of the doors, flaps, hoods or covers in place, locks or locking systems are used, which in turn are monitored electrically.
- the Ge lock consists of a rotatably mounted lock latch, a so-called rotary latch, and at least one pawl, the pawl being able to prevent the movement of the rotary latch and the rotation fall in a closed position of the movable component to hold, the pawl engages in the rotary latch.
- the rotary movement is introduced into the rotary latch by means of a lock holder, with the rotary latch pivoting due to a relative movement between the lock holder and the rotary latch.
- the latching position of the locking mechanism can be used as a measure of a closed state of the movably arranged component on the motor vehicle.
- DE 10 2008 035 607 A1 has disclosed the position of the pawls by means of microswitches so that a controller is able to determine the locking state of the lock.
- the microswitches are used as position detection means for the locking mechanism.
- the locking mechanism has two pawls for a pre-locking position and a main locking position of the locking mechanism.
- a common position detection means is provided for the two pawls.
- the position detection means is designed here in the manner of a double microswitch, which has a first contact tab and a second contact tab.
- the two contact lugs arranged in parallel act as Tastele elements at times with a respective corresponding Tastkon structure of the first pawl and the second pawl together. Due to the different key signals and the change of the key signals in the chronological order when opening and closing the lock, data can be recorded precisely, quickly and redundantly and further functions for operating the motor vehicle and / or the lock unit can be triggered, for game also temen associated with keyless7-8ssys and / or Black Start ging systems and / or the release of the ignition process.
- the microswitches detect the posi tion of the pawls, with a latching position of the locking mechanism being adjustable due to the closed states of the microswitches.
- a switching means that acts directly on a rotary latch for example, is also referred to as a rotary latch switch.
- Rotary latch switches are usually operated, that is pressed, in an open position of the locking mechanism, and released in a main detent position of the locking mechanism. This ensures that the switching device can reliably record the position of the locking mechanism over the life of the lock.
- Switching means however, have the disadvantage that the switching means have switching tolerances. In order to receive a reliable signal about the locking position of the lock, the rotary latch switch must be free in front of the main locking position so that it is reliably relieved in the main locking position so that a control system can determine a safe signal to detect the door position. Switching tolerances are always present in conventional mechanical microswitches and must be taken into account when designing the lock. This is where the invention comes in.
- the object of the invention is to provide an improved motor vehicle lock.
- a lock for a motor vehicle, having a locking mechanism with a rotary latch and at least one pawl, the rotary latch being latched in at least one latching position by means of the pawl, a lock holder, the Rotary latch can be transferred from an open position to the latching position by means of the lock holder and a relative movement between the lock holder and the rotary latch and a switching means, with at least one main latching position of the rotary latch being detectable by means of the switching means, and an overstroke position of the locking mechanism by means of the switching means is detectable.
- the locking mechanism By detecting an overstroke position of the locking mechanism, it is possible to reliably determine whether the locking pawl falls into the locking position of the locking mechanism and, in particular, into the main locking position of the locking mechanism.
- the rotary latch is moved into a closed position by means of the lock holder.
- the component of the motor vehicle held movably by means of the lock In the main locking position, the component of the motor vehicle held movably by means of the lock is in an operationally safe position. In other words, a side door is then in a closed position so that the motor vehicle can be driven safely.
- the reliable detection of the main detent position is of great importance, since the main detent position secures the moving component when the vehicle is ferrying.
- the rotary latch and the pawl lock into one another, with radii on the locking surfaces of the rotary latch and the pawl due to the manufacturing process and / or due to the influence on the closing noise of the locking mechanism. These radii are usually in the range from 0.5 to 1.5 mm, preferably between 0.8 and 1.2 mm, and even more preferably between 0.8 and 1 mm. If the locking mechanism is now rotated by means of the lock holder or by the relative movement between the rotary latch and the lock holder, the rotary latch comes into engagement with the pawl.
- the pawl is preferably arranged in a spring-loaded manner against the rotary latch in the motor vehicle lock.
- a motor vehicle lock includes motor vehicle locksmiths who are used, for example, in side doors, sliding doors, flaps, hoods and / or covers, precisely where pivotable or slidably mounted components are arranged in the motor vehicle . It is also conceivable to arrange the motor vehicle lock in a backrest of a seat.
- the motor vehicle lock has a locking mechanism that has a rotary latch and at least one pawl. Preferably, at least one pawl is arranged in one plane with the rotary latch and is able to lock the rotary latch in one position in cooperation with a lock holder.
- the locking mechanism When the locking mechanism is open, an inlet mouth of the rotary latch points in the direction of a lock holder, with the rotary latch pivoting as a result of a relative movement between the lock holder and rotary latch.
- the pawl is generally spring-preloaded in the direction of the rotary latch, so that the pawl engages with the rotary latch when it reaches a latching position.
- a pre-locking position and a main locking position of the locking mechanism can be assumed.
- the locking system or motor vehicle lock has a lock housing in which the locking mechanism, a locking unit, an actuating unit, an electric drive and / or gear parts can be arranged. This list is of course not exhaustive, but only describes components of the motor vehicle lock that can be used depending on the area of application and functionalities.
- the lock housing is preferably designed as a plastic injection molded part and can consist of at least one lock housing cover and a lock housing shell.
- the lock housing primarily serves to protect the functional components from penetrating moisture and / or dirt, for example.
- the lock housing components are connected to one another in a sealing manner, at least in some areas.
- a lock case can be designed as a steel part and as a bent stamped part and encloses the lock housing at least on two sides and at least in areas.
- the lock case can enclose an inlet mouth for the lock holder and thus serve to stabilize the lock.
- the motor vehicle lock is directly connected and screwed to the motor vehicle body via the lock plate.
- Means for mounting are preferably provided as a thread in the lock plate in the lock plate.
- the lock case also serves as a receptacle for the axles of the locking parts, since the locking mechanism is a safety-relevant component in the motor vehicle lock that, for example, in an accident, i.e. in extreme situations, must hold the movably arranged component securely on the motor vehicle.
- the lock case, locking part axles and the locking components are preferably designed as steel parts, where the locking components can be provided with a plastic casing, for example to reduce noise.
- an open position of the locking mechanism in particular the rotary latch
- the switching means is preferably arranged in the lock such that the position of the rotary latch can be detected directly by means of the switching means.
- the main detent position and the overtravel position can be detected by means of the switching means, but it is advantageously also possible to detect the open position of the rotary latch by means of the switching means.
- the three positions are important for the locking state of the locking mechanism and consequently for the operational status of the motor vehicle. In today's motor vehicles that are equipped with a high level of electronics, it is of great importance whether the locking mechanism is in a main locking position or in a position of off.
- So-called driver assistance systems such as, for example, lane assistance or, in the simplest case, interior lighting, serve to increase the operational safety and / or the comfort behavior of the motor vehicle.
- driver assistance systems such as, for example, lane assistance or, in the simplest case, interior lighting
- Reliable detection of the closed position and in particular the safe closing of the locking mechanism is therefore of essential importance for the operational safety of the motor vehicle.
- the main detent position, the overtravel position and the open position of the locking mechanism are determined, on the one hand a high level of functional reliability can be guaranteed and on the other hand a more cost-effective and structurally simple structure of the motor vehicle lock results.
- the switching means is a Hall sensor, in particular a continuously variable Hall sensor that detects a swivel range of the rotary latch.
- a continuously variable Hall sensor By using a continuously variable Hall sensor, the movement of the rotary latch can be determined via a pivoting path. The detection of the pivoting movement of the rotary latch is also possible over a larger pivoting range, so that an over-travel position, a main detent position and an open position can be precisely detected by means of the Hall sensor.
- a control connected downstream of the lock is thus able to enable reliable detection of the overtravel position and thus to determine safe closing of the locking mechanism. In particular, reaching the over-stroke position ensures that the spring-loaded pawl securely engages the rotary latch. A sham closure can thus be prevented.
- Sham closure means that the pawl and the rotary latch only engage in one another in some areas, with an engagement in the area of the radii at the edges of the locking surfaces between the rotary latch and the ratchet. If only the radii of the locking parts interlock or if the overlap between the pawl and the rotary latch is insufficient, the locking mechanism may disengage during operation of the motor vehicle and the system may become disengaged. lock, for example, moved from a main locking position into a pre-locking position. This incomplete closing of the locking mechanism is also known as sham closing. With the detection of the overtravel position, the risk of a false closure can be eliminated, since the overtravel position ensures that the pawl locks or engages securely in the rotary latch.
- An interaction of the Hall sensor with the locking mechanism can be achieved in an advantageous manner when a Mag net is arranged on the rotary latch, which interacts with a Hall sensor which is fixed in place in the lock.
- the switching means or the Hall sensor is held stationary in the motor vehicle lock, so that a pivoting movement of the rotary latch along the switching means or the Hall sensor can be detected.
- the magnet can be embedded in a plastic casing of the rotary latch, for example, so that the rotary movement of the rotary latch can be grasped directly.
- the structure according to the invention enables a safe and inexpensive detection of the rotational movement of the rotary latch and thus a high degree of functional reliability of the motor vehicle lock.
- the rotary latch cooperate indirectly with the switching means, in particular by means of a switching lever.
- the movement of the rotary latch can be mapped in an advantageous manner by means of a switching lever, the switching means being able to be arranged at a distance from the rotary latch.
- the switching distance can be influenced in that a favorable lever ratio can be structurally adjustable, thus influencing position detection of the Rotary latch is removable. The indirect detection of the rotary latch movement can thus be used in an advantageous manner for securing the position of the rotary latch.
- the switching means is a mechanical switching means, in particular a microswitch.
- the detection of the positions of the rotary case via a microswitch or pushbutton switch leads to a robust arrangement with clearly identifiable signals, because these regularly only know two states: active, inactive.
- a logical interconnection of these signals with a controller thus leads to a position detection means that is structurally simple.
- the advantageous possibility of a translation of the rotary movement by means of, for example, a shift lever in combination with a mechanical switching means can thus lead to a very precise detection of the position of the rotary latch, where even such small pivoting movements, such as from a main detent position in an over-travel position , are reliably and clearly detectable.
- the shift lever has a control contour, the control contour being engageable with the switching means.
- the possibility is created to influence the accuracy when actuating or switching the switching means.
- the shift lever can, for example, have a control contour in the form of a slope, so that the Medium existing spring element can also be used to use a detection of a rotary latch position.
- the shift lever is pivotable and, in particular, is mounted pivotably in a self-locking manner on a rotary latch axis.
- Self-locking means here that the shift lever only performs a pivoting movement when the shift lever is taken along by the catch.
- the switching lever is thus mounted on a rotary latch axis independently of the rotary latch movement.
- the rotary latch axis is preferably made of steel and can have a plastic casing at least in the area of the shift lever.
- the shift lever is made of steel and has a plastic casing, or is made entirely of plastic.
- the switching lever is mounted on the rotary latch axis in such a way that the switching lever remains in its position until the switching lever is also moved by the rotary latch.
- the rotary latch can have entrainments for the shift lever.
- the separate shift lever can generate a delayed signal that can advantageously be used for reliable detection.
- An asymmetrical switching point of the switching means can thus be achieved, with a delayed, that is to say a late switching of the switching means being able to be generated.
- the main detent position can already be reached and the switching lever continues to operate the switching means; only when the rotary latch has reached its overtravel position is the switching lever moved over the catches, thereby releasing the switching means.
- the drivers can advantageously be molded into the plastic casing of the rotary latch.
- the catches are formed on the rotary latch in such a way that the switching lever is arranged between the catches, whereby a movement of the switching lever can be moved in the direction of an open position and in the direction of a closed position.
- the catches are attached to the rotary latch as switch plungers, the switch plungers being formed in particular in one piece with the rotary latch casing.
- Switching tappets are connectable in a form of the catch, with the switch plunger turn away he can stretch from a rotary latch axis, so that even on the rotary latch in combi nation with the switch S t Congresseln aforementionedsver ratio set leaves.
- the shift lever is preferably arranged between the switch S plungers, whereby a take with the shift lever can be achieved. It is also conceivable, however, that, for example, the shift lever has an opening into which, for example, a shift plunger engages and thus only one shift plunger is used to actuate the shift lever.
- the switch plunger can be guided in, for example, a groove in the switch lever, the end stops of the groove in the switch lever being available for moving the switch lever.
- a combination of a gearshift lever with a Hall sensor is imaginable according to the invention and represents an embodiment of the invention.
- the shift lever can have a magnet, the magnet interacting with the Hall sensor for unambiguous position detection with the Hall sensor.
- Fig. 1 is a plan view of a locking mechanism of a motor vehicle lock with the essential components for explaining the invention, where the locking mechanism is shown in an open position
- Fig. 2 shows the locking mechanism according to the invention in a plan view of the ne held in a lock plate Lock in a main stop position
- FIG. 3 the locking mechanism according to FIGS. 1 and 2 in an overtravel position
- Fig. 4 the locking mechanism according to the invention in a main locking position after reaching the stroke position.
- a motor vehicle lock 1 is shown in a side view of a locking mechanism 3 stored in a lock case 2 in a side view. Only the components of the motor vehicle lock 1 that are essential to explain the invention are given again.
- the lock case 2 can for example be connected to a lock housing 4, the lock case
- the lock case 2 is connectable by means of the openings 5 with, for example, a motor vehicle door.
- the lock case 2 has reinforcing ribs 6, an inlet opening 7 for a lock holder 8 in the lock case 2 and lock housing 4 being provided.
- a rotary latch 9 and a pawl 10 is rotatably or pivotably mounted.
- a switching lever 13 is additionally arranged on the rotary latch axis 11, the switching lever 13 cooperating with a switching means 14.
- switch tappets 15, 16 are formed in this embodiment.
- the switch plungers extend radially outward from the rotary latch axis 11 and are able to operate the separately on the ??? the rotary fall axis 11 to actuate the shift lever 13 mounted.
- the shift lever 13 is self-lockingly mounted on the pivot axis 11 so that the shift lever 13 is his Maintains position when the switch plungers 15, 16 do not initiate any movement in the switch lever 13.
- the switch tappets 14, 16 are integral and firmly connected to the rotary latch 9.
- the switching means 14 is formed in this embodiment, for example, as a microswitch, electrical contacts being connected to a conductor track, not shown, for example of the lock housing 4 and to a control unit.
- the switching means is actuated by means of a control contour 19 of the switching lever 13, the switching lever 13 actuating the switching means 14 in FIG. 1, in other words the switch was switched by means of the switching lever.
- the lock holder 8 is released and the switching means 14 is actuated.
- a downstream control unit can thus detect an open position of the rotary latch and thus of the locking mechanism 3.
- the overtravel position of the rotary latch 9 is shown in FIG. That is, the rotary latch 9 has been moved in the direction of the arrow PI beyond the main locking position, so that the spring-loaded pawl 10 can pivot fully into the locking position.
- the switch plunger 16 moves the switch lever 13 into a position in which the control contour 19 of the switch lever 13 releases the switching means 14.
- a delayed, that is to say late, signal is thus generated only in the overtravel position of the locking mechanism 3.
- the overtravel position can thus be detected, as a result of which a reliable engagement of the pawl 10 in the rotary latch 9 can be achieved. A sham closure can thus be prevented.
- a transmission ratio from the rotary latch axis 11 in the direction of the switching means 14 can be provided by means of the switching lever 13.
- This gear ratio enables safe actuation of the switching means 14 to be provided, as a result of which a high degree of functional reliability can be provided in the motor vehicle lock 1.
- the switching lever 13 remains in the overtravel position U, the switching lever 13 being transferred from the switching position S to the overtravel position U.
- the self-locking mounting of the shift lever 13 on the rotary latch axis keeps the
- Shift lever 13 its position U at.
- the rotary latch 9 moves back into the main notch S position, the shift lever 13 maintaining its overtravel position U.
- the switching means 14 is enabled, as a result of which the control receives a clear signal that the main locking position of the lock 3 has been reached. Only when the locking mechanism 3 is geöff net again, the pawl 10 being brought out of engagement with the rotary latch 9, the shift lever 13 is moved back into the S position by means of the switch S tappet 15.
- the inventive construction of the locking mechanism 3 of the motor vehicle lock 1 can provide reliable detection of the main detent position, where the overstroke position of the locking mechanism in combination with the delayed detection of the rotary latch position provides a secure signal for the locking mechanism 3 and a pseudo-locking of the locking mechanism 3 can be prevented.
Landscapes
- Lock And Its Accessories (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102019107350.2A DE102019107350A1 (de) | 2019-03-22 | 2019-03-22 | Schloss für ein Kraftfahrzeug |
| PCT/DE2020/100159 WO2020192826A1 (de) | 2019-03-22 | 2020-03-09 | Schloss für ein kraftfahrzeug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3942131A1 true EP3942131A1 (de) | 2022-01-26 |
Family
ID=70005564
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP20714109.4A Withdrawn EP3942131A1 (de) | 2019-03-22 | 2020-03-09 | Schloss für ein kraftfahrzeug |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP3942131A1 (de) |
| DE (1) | DE102019107350A1 (de) |
| WO (1) | WO2020192826A1 (de) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2295643B (en) * | 1993-04-07 | 1996-08-07 | Mitsui Mining & Smelting Co | Door lock apparatus with automatic door closing mechanism |
| DE4433042C2 (de) * | 1994-04-13 | 1998-06-04 | Kiekert Ag | Kraftfahrzeugtürverschluß mit Überwachungsstromkreis für die Überwachung der Schließstellung der Kraftfahrzeugtür |
| DE10255562B4 (de) * | 2002-11-22 | 2010-01-07 | Brose Fahrzeugteile Gmbh & Co. Kommanditgesellschaft, Coburg | Schließsystem für ein Kraftfahrzeug |
| DE10261505B4 (de) * | 2002-12-23 | 2017-02-09 | Volkswagen Ag | Verriegelungsvorrichtung für eine Fahrzeugtür |
| DE102008035607A1 (de) * | 2008-07-31 | 2010-02-04 | Kiekert Ag | Schlosseinheit mit zwei Sperrklinken und Positionserkennungsmitteln |
| CN107178262B (zh) * | 2016-03-11 | 2021-07-30 | 开开特股份公司 | 闩锁单元 |
-
2019
- 2019-03-22 DE DE102019107350.2A patent/DE102019107350A1/de active Pending
-
2020
- 2020-03-09 EP EP20714109.4A patent/EP3942131A1/de not_active Withdrawn
- 2020-03-09 WO PCT/DE2020/100159 patent/WO2020192826A1/de not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020192826A1 (de) | 2020-10-01 |
| DE102019107350A1 (de) | 2020-09-24 |
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