DE10033297B4 - Accelerator pedal module - Google Patents

Abstract

Accelerator pedal device for vehicles, in particular passenger cars, having at least
A base plate element (213),
An accelerator pedal member (212) connected to the base plate member (213) at an accelerator pedal pivot (211, 260), and
- at least one pedal return device (214, 215, 216, 217, 218, 219, 220, 221, 222, 229, 230, 231,) arranged between the accelerator pedal and the base plate element (212, 213),
- wherein the pedal return means comprises at least one spring element (214, 215) which is connected at one end to a fixed spring holding element (216, 217), and between both ends of the spring element (214, 215) a Federgleitflächeneinrichtung (229, 230, 231) is arranged
characterized,
- That the spring element (214, 215) is connected at its second end with a movable Federgleithalteelement (218, 219) to be moved on a Gleitflächeneinrichtung (220, 221, 222),
- That the spring element (214, 215) is bent in an Ω-shape,
- That the fixed spring holding element (216, 217) and the ...

Description

• – ein Grundplattenelement,
• – ein Fahrpedalelement, das in einem Fahrpedaldrehpunkt mit dem Grundplattenelement verbunden ist, und
• – wenigstens eine Pedalrückholeinrichtung, die zwischen dem Fahrpedal- und dem Grundplattenelement angeordnet ist,
• – wobei die Pedalrückholeinrichtung wenigstens ein Federelement aufweist, das an einem Ende mit einem feststehenden Federhalteelement verbunden ist, und zwischen beiden Enden des Federelements eine Federgleitflächeneinrichtung angeordnet ist.

The invention relates to an accelerator pedal device for vehicles, in particular passenger cars, which has at least

• A base plate element,
• An accelerator pedal element connected to the base plate member at an accelerator pedal fulcrum, and
• At least one pedal return device arranged between the accelerator pedal and the base plate element,
• - Wherein the pedal return means comprises at least one spring element which is connected at one end with a fixed spring holding element, and between which ends of the spring element a Federgleitflächeneinrichtung is arranged.

A device of the type mentioned is from the DE 197 32 340 A1 known. In a holding part a pedal arm is pivotally mounted in a hanging mounting position. The pedal arm is biased by a restoring device with a spring element into a basic position, in which a lever of the pedal arm bears against an idling stop of the holding part. The restoring device has a guide part. Furthermore, the accelerator pedal has an attenuator with attached to the legs of the guide member spring elements, which are biased against arranged on the Ba sis of the pedal arm friction fittings. A hysteresis of the attenuator is achieved by its friction force increases when depressing the pedal arm with the spring force and drops accordingly when you release.

adversely is that a hysteresis with comparatively simple friction force curve is trained.

From the EP 09 95 625 A1 a hysteresis module is known in which a with its end torsionally coupled to a rotary element coupled spring element with its free end directly or via a friction element on a stationary, curved friction surface. The amount of normal force with which the outer surface of the free end rests against the friction surface is, together with the friction coefficient of the friction pair, a measure of the frictional forces that are transmitted as friction torque from the rotary element to an actuating element and corresponding to the rotation of the actuating element increase the torque required from the rest position.

such Modules are needed in so-called "drive-by-wire" systems, which by the usual cable transmission existing frictional forces, to a force hysteresis during pivoting of the rotatably mounted Elements lead to to give the operator the familiar operating characteristics to obtain.

From the DE 94 09 892 U1 or the DE 195 03 335 A1 The applicant is aware of an accelerator pedal device consisting of a pedal element, which is held in a pivot point, and at least one return element, which is connected to the pedal element. As return elements two return springs are used. In the fulcrum a Drehwinkelsensorele element is arranged. This accelerator pedal device has been proven, but is complex in construction.

Ultimately, out of the DE 295 02 529 U1 respectively. DE 296 02 611 U1 an accelerator pedal device is known, which has a pedal element which is held in a pivot point. At least one return element is connected to the pedal element. As a return element is a damper device is used, which realizes a Bewegungshysterese loop such that an actuation and return movement counteracts each damping energy. The damper device consists of a hydraulic unit which cooperates with two spring elements.

It Therefore, the task is an accelerator pedal device for vehicles, in particular passenger cars of the type mentioned so on to develop their structure easier and the generation of the Motion hysteresis during actuation the accelerator pedal is comfortable.

• – dass das Federelement an seinem zweiten Ende mit einem beweglichen Federgleithalteelement verbunden ist, das auf einer Gleitflächeneinrichtung zu verschieben ist,
• – dass das Federelement Ω-förmig gebogen ist
• – dass das feststehende Federhalteelement und die Gleitflächeneinrichtung mit dem beweglichen Federgleithalteelement auf dem Grundplattenelement angeordnet sind und
• – dass ein zwischen beiden Enden des Federelements liegendes Federbogenelement an der Federgleitflächeneinrichtung zu verschieben ist, die an einer Fahrpedalunterseite des Fahrpedalelements angeordnet ist.

According to the invention, this object is achieved by

• - That the spring element is connected at its second end with a movable Federgleithalteelement which is to be moved on a Gleitflächeneinrichtung,
• - That the spring element is bent Ω-shaped
• - That the fixed spring holding member and the Gleitflächeneinrichtung are arranged with the movable Federgleithalteelement on the base plate member and
• - That a lying between the two ends of the spring element spring bow element is to be moved to the Federgleitflächeneinrichtung, which is arranged on an accelerator pedal underside of the accelerator pedal element.

The advantages achieved by the invention are, in particular, that the accelerator pedal element and the Grundplat tenelement face tweezers in the accelerator pedal fulcrum. The arranged between the two elements Federele Due to its bending and type of attachment, it has motion characteristics that are not linear. The sliding surface means and the Federgleitflächeneinrichtung allow to influence the movement characteristics. As a result, a comfortable hysteresis-shaped movement characteristic of the accelerator pedal element is achieved with a few means.

The Gleitflächeneinrichtung can be made of a sliding surface element exist on which a slide rail element is arranged so that the Federgleithalteelement the slide rail element at least partially comprises and over the sliding surface element at least is to be moved partially. The slide rail element ensures that the Federgleithalteelement can be guided back and forth positionally. The sliding surface element, over the The slide rail element can move, can be different Have friction coefficients μ. The sliding surface element can be constructed so that it is different by materials Friction coefficients are arranged one behind the other. This can the movement characteristics of the accelerator pedal element are influenced accordingly.

The Federgleitflächeneinrichtung can be made of a spring sliding surface element exist, arranged on the at least one spring guide rail element so is that the Ω-shaped spring element with its spring bow element on the Federgleitflächenelement can be at least partially move. Again, the Federgleitflächenelement realized with materials of different or equal coefficients of friction μ become. Characterized in that the spring bow element on the specially designed Federgleitflächenelement is additionally shifted, The movement characteristic of the accelerator pedal element can be even finer be matched. The guide rail element makes sure that the spring bow member is linear, i. in the direction of the base plate element is moved and not sideways can slip out.

The Spring elements, the spring retaining elements, the Federgleithalteelemente and the slide rail elements can be present in pairs. This will be safety Meets requirements, which require a paired presence of the spring elements.

If the sliding surface element one-piece or paired, can by the respective Operating conditions are determined.

On the accelerator pedal top can at least partially a Fußplattenelement be arranged. The footplate element may have a Fußplattenkörper, in the plate tip region with at least one tilting element the accelerator pedal top can be attached, wherein at least one side a tilting body can be arranged.

Of the tilting body can as a front and Hinterkippkörper trained and before and behind the Kippelelement on the accelerator pedal top be arranged. As a result, the operating comfort is increased.

The Accelerator pedal top can be designed as a pedal actuator be. By appropriate structuring it can be used alone as well also with the Fußplattenkörper as Serve accelerator function element.

The Spring elements can be formed as a flat spring elements. With the flat spring elements it is possible in a simple way to realize the Ω-shape. Instead of of flat spring elements can Also differently shaped spring elements, which are round, oval in cross-section or have a different geometric configuration, for Use come.

at a Ω-shaped spring element For example, the pair of fixed spring retainers may be at one of the accelerator pedal pivot points be arranged adjacent plate end, while cooperating with these Spring sliding, sliding and sliding surface elements of the pair of movable Federgleithalteelemente on the plate tip of the base plate member can be arranged. If the accelerator pedal element is actuated here, the pair shifts in an Ω-shaped curve Flat spring elements on the plate tip of the base plate element and thus corresponds to the actuating movement direction the Ω-shaped bent Flat spring elements. In this case, the first movement of the accelerator pedal element through the spring elasticity and the adjoining ones further movements by the spring elasticity, the sliding surface element and the spring sliding surface element realized.

in the Fahrpedeldrehpunkt or accelerator pedal element can be a rotation angle sensor device be arranged. This can be after a potentiometer, reverb or a similar one Principle work. Which principle is used depends on the respective conditions of use.

Of the Accelerator pedal can be used as a bolt hinge joint connecting element be educated. This is a simple and safe movement the accelerator pedal element opposite secured to the base plate element.

The accelerator pedal pivot point can also be designed as a film hinge element. It may comprise an elastic band on which a pedal and a base plate anchoring body can be arranged on both sides. The pedal anchor body can with the driving pedal element and the base plate anchor body to be connected to the base plate body. This creates a simple and very effective connection between the parts of the accelerator pedal module.

The The invention will be explained in more detail with reference to the drawing. Show it:

1a an accelerator pedal module in a schematically illustrated, partially sectioned side view,

1b an accelerator pedal module according to 1a with a Fußplattenelement in a schematically illustrated, partially sectioned side view and

1c a film hinge joint element for an accelerator pedal module according to 1a and 1b in the mounted state in a schematically illustrated partial section.

In the 1a to 1c an accelerator pedal module 201 shown.

• – einem Fahrpedalelement 212 und
• – einem Grundplattenelement 213, die in einem Fahrpedaldrehpunkt 211, 260 verbunden sind.

The accelerator pedal module 201 consists

• - An accelerator pedal element 212 and
• - a base plate element 213 that in an accelerator pedal fulcrum 211 . 260 are connected.

Of the Accelerator pedal is designed as a bolt hinge joint connecting element.

The accelerator pedal element 212 has a top stop element in the area of the bolt hinge connection element 223 , on the base plate element 213 a lower limit item 224 faces.

A pedal end 226 of the accelerator pedal element 212 is located in the area of the accelerator pedal pivot point 211 , This is the pedal tip 225 across from. An accelerator pedal operating element that with 227 is designated, is an accelerator pedal bottom 228 across from. The accelerator pedal pad 227 has an actuating relief, which is formed in strip form, grid shape or the like. As materials rubber, plastic or similar materials can be used. At the accelerator pedal base 228 of the accelerator pedal element 212 corresponding cross braces are arranged, the mechanical stability of the accelerator pedal element 212 serve. Even such cross braces are also on an underside of the base plate member 213 arranged. With 232 is a plate top and with 233 denotes a plate end.

For each of the Ω-shaped flat spring elements 214 . 215 is a fixed spring retaining element 216 . 217 at the end of the plate 233 of the base plate element 213 arranged.

In the area of the plate top 232 is a sliding surface element 221 arranged. On this are Federgleithalteelemente 218 . 219 arranged. On the spring sliding elements 218 . 219 are spring holding elements 216 . 217 slidably positioned, in which the other end of the flat spring elements 214 . 215 is held.

At the accelerator pedal base 228 are about halfway between the pedal tip 225 and the pedal end 226 Federgleitflächenelemente 229 . 230 fastened, between which and before which spring guide rail elements 231 are angordnet. The spring sliding surface elements 229 . 230 lie on the Federbogenteilelementen 234 . 235 the flat spring elements 214 . 215 on.

As the 1b in a modified embodiment, is on the pedal actuation surface element 227 in the area of the pedal tip 236 a footplate element 240 arranged. The footplate element 240 has a Fußplattenkörper 244 on that with a tilting element 241 on the pedal operating panel 227 is attached. The tilting element 241 is designed as a film hinge joint. It has an X-shaped configuration, with curved plastic strips facing each other and the space between them is filled with foam.

On both sides of the tilting element 241 are front and rear tipping bodies 242 . 243 on the pedal operating panel 227 applied. Due to the presence or the height of the tilting element, the range of motion of the Fußplattenelements can be 240 define.

• – ein Elastikband 263 aufweist, das mit
• – einem Pedalankerkörper 261 und mit
• – einem Grundplattenankerkörper 262 verbunden ist.

An accelerator pedal 260 can be, like the 1c shows, very elegant realize as a film hinge element, the

• - an elastic band 263 that has with
• - a pedal anchor body 261 and with
• A base plate anchor body 262 connected is.

The pedal anchor body is with a T-anchor 264 in the driving pad element 212 and the base anchor body with a T-anchor 265 in the base plate element 123 anchored. Recesses in the T-anchors 264 and 265 increase their Verkrallungseffekt.

The operation of the accelerator pedal module, 201 , as it results from the illustrated embodiments, is explained:
During a movement of the accelerator pedal element 212 from a non-operating position 212.1 into an actuator supply position 212.2 become the two Ω-shaped flat spring elements 214 . 215 by moving the Federgleithalteelemente 218 . 219 over the slide rail elements 220 . 221 from a non-operating position 218.1 . 219.1 in an operating position 218.2 . 219.2 postponed. The shift takes place here exclusively on the base plate element 213 , The shift is due to the fact that the attached to the accelerator pedal underside Federgleitflächenelemente 229 . 230 on the spring bow elements 234 . 235 to press. To escape the pressure, both flat spring elements move 214 . 215 from a position "spring relaxed" 214.1 . 215.1 in an actuating position "spring stretched" 214.2 . 215.2 ,

By the choice of materials with corresponding coefficients of friction μ in the design of Gleitflächenelements 222 and the spring sliding surface elements 229 . 230 can the movement characteristics of the accelerator pedal element 212 to the base plate element 213 be influenced in many ways. This is a very comfortable trained movement characteristics of the accelerator pedal element 212 possible. It is essential that this comfortable motion characteristic can be realized with simple means and in a very simple manner. In that when releasing the accelerator pedal element 212 the Federgleitflächenelemente 229 . 230 without loading on the spring bow elements 234 . 235 and the slide rail elements 220 . 221 free on the sliding surface element 222 rest, let this a rapid movement of the accelerator pedal element of the position 212.2 in the position 212.1 to. By a corresponding interaction of the Federgleithalteelemente 218 . 219 with the slide rail elements 220 . 221 and the sliding surface element 222 Here is an influenceable movement secured in the starting position.

It should be emphasized that here is the operating characteristic of the accelerator pedal element 212 makes it particularly good.

By a rising against the pedal actuation resistance can be the movement of the pedal 212 inhibit accordingly in the end position.

Traced here is a Bewegungshysterese loop, by the spring forces of two spring elements and two Gleitflächenelemente 222 and 229 . 230 is to be influenced with the same and / or different coefficients of friction μ.

Will the foot from the actuating surface element 227 and / or the footplate element 240 taken, inhibit the Gleitflächenelemente successively the movement of the accelerator pedal element 212 in the direction of non-operating position 212.1 from. If a position of the accelerator pedal element 212 are held, only the spring forces are to be compensated. Only with a further movement in the direction of the operating position are again the sliding surfaces 222 . 229 and 230 active.

201

Accelerator pedal module

211

Accelerator pivot point

212

Accelerator pedal element

212.1

Non-actuated position

212.2

actuating position

213

Base element

214 215

[Ω-shaped bent] Flat spring element

214.1, 215.1

feather relaxed

214.2, 215.2

feather curious; excited

216 217

Spring retaining element

218 219

Federgleithalteelement

218.1, 219.1

Non-actuated position

218.2, 219.2

actuating position

220 221

A slide

222

sliding surface

223

Upper stop element

224

Under stop element

225

pedal tip

226

pedal end

227

Pedal actuation surface element

228

Accelerator pedal underside

229, 230

Federgleitflächenelement

231

Spring guide rail element

232

Plattenspitze

233

plate end

234 235

Spring bow element

236

pedal tip

240

foot plate

241

tilt element

242

Vorderkippkörper

243

Hinterkippkörper

244

Fußplattenkörper

260

Accelerator pivot point

261

Pedal anchor body

262

Baseplate anchor body

263

elastic

264

T-Anchor

265

T-Anchor

μ

coefficient of friction

Claims (16)

Accelerator pedal device for vehicles, in particular passenger cars, having at least - a base plate element ( 213 ), - an accelerator pedal element ( 212 ), which in an accelerator pedal fulcrum ( 211 . 260 ) with the base plate element ( 213 ), and - at least one pedal return device ( 214 . 215 . 216 . 217 . 218 . 219 . 220 . 221 . 222 . 229 . 230 . 231 ,), between the accelerator pedal and the base plate element ( 212 . 213 ) is arranged, - wherein the pedal return device at least one spring element ( 214 . 215 ), which at one end with a fixed spring retaining element ( 216 . 217 ), and between both ends of the spring element ( 214 . 215 ) a spring sliding surface device ( 229 . 230 . 231 ), characterized in that - the spring element ( 214 . 215 ) at its second end with a movable Federgleithalteelement ( 218 . 219 ) connected to a sliding surface device ( 220 . 221 . 222 ), - that the spring element ( 214 . 215 ) Is Ω-shaped, - that the fixed spring retaining element ( 216 . 217 ) and the sliding surface device ( 220 . 221 . 222 ) with the be weglichen Federgleithalteelement ( 218 . 219 ) on the base plate element ( 213 ) are arranged and - that between one end of the spring element ( 214 . 215 ) lying spring bow element ( 234 . 235 ) on the spring sliding surface device ( 229 . 230 . 231 ), which is at an accelerator pedal underside ( 228 ) of the accelerator pedal element ( 212 ) is arranged. Device according to claim 1, characterized in that the sliding surface device consists of a sliding surface element ( 222 ), on which a slide rail element ( 220 . 221 ) is arranged so that the Federgleithalteelement ( 218 . 219 ) the slide rail element ( 220 . 221 ) at least partially and over the Gleitflächenelement ( 222 ) is at least partially postponed. Apparatus according to claim 1 or 2, characterized in that the Federgleitfächeneinrichtung from a Federgleitflächenelement ( 229 . 230 ), on which at least one spring guide rail element ( 231 ) is arranged so that the Ω-shaped spring element ( 214 . 215 ) with its spring bow element ( 234 . 235 ) on the spring sliding surface element ( 229 . 230 ) is at least partially postponed. Device according to at least one of claims 1 to 3, characterized in that the spring elements ( 214 . 215 ), the spring retaining elements ( 216 . 217 ), the spring sliding retaining elements ( 218 . 219 ) and the slide rail elements ( 220 . 221 ) in pairs. Device according to at least one of claims 1 to 4, characterized in that the spring elements as flat spring elements ( 214 . 215 ) are formed. Device according to at least one of claims 1 to 5, characterized in that the sliding surface element ( 222 ) is formed in one piece or pair. Device according to at least one of claims 1 to 6, characterized in that on an accelerator pedal top ( 227 ) at least partially a Fußplattenelement ( 240 ) is arranged. Device according to at least one of claims 1 to 7, characterized in that the Fußplattenelement ( 240 ) a Fußplattenkörper ( 244 ), which in the region of a pedal tip ( 236 ) with at least one tilting element ( 241 ) on the accelerator pedal top ( 227 ) is attached. Device according to at least one of claims 1 to 8, characterized in that at least to one side of the tilting element ( 241 ) at least one tilting body ( 242 . 243 ) is arranged. Device according to at least one of claims 1 to 9, characterized in that the tilting body as a front and Hinterkippkörper ( 242 . 243 ) in front of and behind the tilting element ( 241 ) on the accelerator pedal top ( 227 ) is arranged. Device according to at least one of claims 1 to 10, characterized in that the accelerator pedal top side a pedal actuation surface element ( 227 ). Device according to at least one of claims 1 to 11, characterized in that a pair of spring retaining elements ( 216 . 217 ) at one of the accelerator pedal fulcrum ( 211 . 260 ) adjacent plate end ( 233 ) of the base plate element ( 213 ) and pairs with this over the pair Ω-shaped flat spring elements ( 214 . 215 ) cooperating Federgleithalte-, Gleitschienen- and Gleitflächenelemente ( 218 . 219 . 220 . 221 . 222 ) on a plate tip ( 232 ) of the base plate element ( 213 ) are arranged. Device according to at least one of claims 1 to 12, characterized in that a potentiometer, Hall or operating on a similar principle rotation angle sensor device is provided, which in the accelerator pedal fulcrum ( 211 . 260 ) or on the accelerator pedal element ( 212 ) is arranged. Device according to at least one of claims 1 to 13, characterized in that the accelerator pedal pivot point as a hinge joint connecting element ( 211 ) is trained. Device according to at least one of claims 1 to 13, characterized in that the accelerator pedal pivot point as a film hinge element ( 260 ) is trained. Device according to at least one of claims 1 to 15, characterized in that - the film hinge element ( 260 ) an elastic band ( 263 ) on which on both sides a pedal and a base plate anchor body ( 261 . 262 ), and - that the pedal anchor body ( 261 ) with the accelerator pedal element ( 212 ) and the ground rod body ( 262 ) with the base plate element ( 213 ) connected is.