EP1218232A1 - Lenksystem für kraftfahrzeuge - Google Patents
Lenksystem für kraftfahrzeugeInfo
- Publication number
- EP1218232A1 EP1218232A1 EP00966107A EP00966107A EP1218232A1 EP 1218232 A1 EP1218232 A1 EP 1218232A1 EP 00966107 A EP00966107 A EP 00966107A EP 00966107 A EP00966107 A EP 00966107A EP 1218232 A1 EP1218232 A1 EP 1218232A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- steering
- actuator
- steering system
- electric motor
- handwheel
- 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- Withdrawn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
- 230000005540 biological transmission Effects 0.000 claims abstract description 7
- 230000007246 mechanism Effects 0.000 claims description 3
- 230000003134 recirculating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 2
- 241000219492 Quercus Species 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D5/00—Power-assisted or power-driven steering
- B62D5/001—Mechanical components or aspects of steer-by-wire systems, not otherwise provided for in this maingroup
Definitions
- the invention relates to a steering system for motor vehicles according to the kind defined in the preamble of claim 1.
- the signals detected by various sensors are passed on to a central control unit via a large number of cables, processed there to form a manipulated variable, and then passed on to an actuator in the form of a steering actuator ,
- a central control unit via a large number of cables, processed there to form a manipulated variable, and then passed on to an actuator in the form of a steering actuator .
- This can be a hydraulic, electrohydraulic or purely electrical steering system, regardless of whether there is a mechanical connection between the steering handwheel and the steered wheels of the vehicle.
- Steering angle and torque sensors are often integrated directly on a steering column or on the steering handwheel. As a result, these sensors rotate with the steering handwheel when a steering movement is initiated. This requires either long cable connections, which can lead to a weakening of the sensor signals, or the integration of a gearbox to reduce the cable length.
- the installation of a gearbox leads to disadvantages in terms of costs, installation space and weight.
- Other sensors are located in poorly accessible places or in the vicinity of other units, which requires complex cable routing and shielding. Due to the vibrations occurring in the vehicle and through external influences such as dirt or oil as well Electrical and magnetic fields of other units in the vehicle can easily lead to falsified measurement signals or even failure of the entire sensor system.
- a power steering device which comprises a torque measuring device which has a contactless torque sensor for determining a torque transmitted longitudinally to the steering shaft, an electronic control for the additional torque transmitted to the steering shaft and a servo motor.
- the torque measuring device also includes a magnetic sensor device which consists of two drums with magnetizable surfaces and is connected to an input or an output element. The drums are provided on their circumference or on their end face with magnetizable media in such a way that they alternately form magnetic north and south poles. By measuring the difference in the angle of rotation of the two drums, the torque is detected using magnetoresistive elements.
- This arrangement requires a clock spring or a grinder unit for the electrical connection of the rotating drums.
- a clock spring When using a clock spring, several cables with a length of up to 2 m are required for the electrical connection. Electromagnetic interference can have a negative effect on the measurement signals via these cables. In addition, these long cable connections involve risks with regard to cable or solder joint breakage. If a wiper unit is used for the electrical connection instead of a coil spring, it can The transition area between the grinder and the contact surface can lead to imprecise measurement results due to factors such as wear, corrosion and dirt. In addition, malfunctions and inaccurate measurement results can occur when the grinder unit and clock spring are installed in the motor vehicle due to oil, dirt and grease deposits.
- the present invention has for its object to provide a steering system that can be easily integrated into the vehicle regardless of the vehicle type and steering-specific
- the assembly effort and the susceptibility to faults are to be reduced and the transmission accuracy is to be increased.
- the solution is achieved in particular in that the signals detected by the sensors are transmitted via remote data transmission via a central control unit or directly to a steering actuator.
- Remote data transmission is preferably carried out by radio, radar, infrared or laser signals.
- the sensors can be easily decoupled from the interference from the environment, since they can be placed anywhere in the vehicle. Safe function can be ensured by appropriately encapsulating the sensors.
- the Control unit can either be combined with other electronic assemblies, or placed separately anywhere in the vehicle.
- Fig. 1 shows a first embodiment of an inventive steering system
- FIG. 2 shows a variant of the steering system according to the invention shown in FIG. 1.
- a setpoint 3 predetermined by a driver 1 via a steering wheel actuator 2 is transmitted to a steering actuator 4 by remote data transmission.
- a control unit 5 is integrated in the steering actuator 4. 2, the control unit 5 is designed as a separate component in a variant of the invention.
- the setpoint 3 is first transferred to the control unit 5, processed there and then passed on to the steering actuator 4.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Steering Control In Accordance With Driving Conditions (AREA)
- Power Steering Mechanism (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1999148755 DE19948755A1 (de) | 1999-10-09 | 1999-10-09 | Lenksystem für Kraftfahrzeuge |
| DE19948755 | 1999-10-09 | ||
| PCT/EP2000/009689 WO2001026949A1 (de) | 1999-10-09 | 2000-10-04 | Lenksystem für kraftfahrzeuge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1218232A1 true EP1218232A1 (de) | 2002-07-03 |
Family
ID=7925123
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP00966107A Withdrawn EP1218232A1 (de) | 1999-10-09 | 2000-10-04 | Lenksystem für kraftfahrzeuge |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP1218232A1 (de) |
| JP (1) | JP2003511307A (de) |
| DE (1) | DE19948755A1 (de) |
| WO (1) | WO2001026949A1 (de) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2184601B1 (es) * | 2001-03-15 | 2004-01-01 | Castellon Melchor Daumal | Sistema de direccion mediante señal electrica optica o de radio. |
| DE10141699A1 (de) * | 2001-08-25 | 2003-03-13 | Bosch Gmbh Robert | Fahrzeugmodul |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616224A (en) * | 1983-03-16 | 1986-10-07 | Sheller-Globe Corporation | Multifunction steering wheel |
| DE3617681A1 (de) * | 1986-05-26 | 1987-12-03 | Otto Bornemeier | Selbstfahrbare arbeitsmaschine mit wechselwerkzeugen oder -geraeten |
| FR2627738A1 (fr) * | 1988-02-01 | 1989-09-01 | Ferraye Michel | Direction a commande electronique et ou a fibres optiques conducteurs et moteurs et quatre roues directrices |
| IT1242083B (it) * | 1990-10-03 | 1994-02-08 | Fiat Auto Spa | Autovettura a trazione elettrica con dispositivo di manovra di parcheggio a comando esterno |
| DE4334595C1 (de) * | 1993-10-11 | 1995-04-27 | Siemens Ag | Steuerung für ein Kraftfahrzeug |
| US5833025A (en) * | 1995-09-13 | 1998-11-10 | Bhandari; Gurubaksh | Wireless automobile cruise control system |
| DE19648374A1 (de) * | 1996-11-22 | 1998-06-04 | Volkswagen Ag | Betätigungsvorrichtung zur manuellen Steuerung von Fahrzeugeinrichtungen |
| DE19755044C1 (de) * | 1997-12-11 | 1999-03-04 | Daimler Benz Ag | Fahrzeuglenkung |
-
1999
- 1999-10-09 DE DE1999148755 patent/DE19948755A1/de not_active Withdrawn
-
2000
- 2000-10-04 JP JP2001529983A patent/JP2003511307A/ja active Pending
- 2000-10-04 EP EP00966107A patent/EP1218232A1/de not_active Withdrawn
- 2000-10-04 WO PCT/EP2000/009689 patent/WO2001026949A1/de not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0126949A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2001026949A1 (de) | 2001-04-19 |
| DE19948755A1 (de) | 2001-04-19 |
| JP2003511307A (ja) | 2003-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
| 17P | Request for examination filed |
Effective date: 20020223 |
|
| AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
| 17Q | First examination report despatched |
Effective date: 20030210 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): AT BE CH CY DE DK FR GB IT LI NL |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ZF LENKSYSTEME GMBH |
|
| GRAP | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOSNIGR1 |
|
| RBV | Designated contracting states (corrected) |
Designated state(s): BE DE FR GB IT NL |
|
| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20051216 |