DE4434651A1 - Hydraulically operated car trailer drive - Google Patents

Hydraulically operated car trailer drive

Info

Publication number
DE4434651A1
DE4434651A1 DE19944434651 DE4434651A DE4434651A1 DE 4434651 A1 DE4434651 A1 DE 4434651A1 DE 19944434651 DE19944434651 DE 19944434651 DE 4434651 A DE4434651 A DE 4434651A DE 4434651 A1 DE4434651 A1 DE 4434651A1
Authority
DE
Germany
Prior art keywords
trailer
brake
circuit
hydraulically operated
wheels
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.)
Ceased
Application number
DE19944434651
Other languages
German (de)
Inventor
Lothar Klein
Heinz-Guenther Strebe
Wolfgang Gentzsch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19944434651 priority Critical patent/DE4434651A1/en
Publication of DE4434651A1 publication Critical patent/DE4434651A1/en
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60T—VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF; BRAKE CONTROL SYSTEMS OR PARTS THEREOF, IN GENERAL; ARRANGEMENT OF BRAKING ELEMENTS ON VEHICLES IN GENERAL; PORTABLE DEVICES FOR PREVENTING UNWANTED MOVEMENT OF VEHICLES; VEHICLE MODIFICATIONS TO FACILITATE COOLING OF BRAKES
    • B60T11/00—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant
    • B60T11/10—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic
    • B60T11/108—Transmitting braking action from initiating means to ultimate brake actuator without power assistance or drive or where such assistance or drive is irrelevant transmitting by fluid means, e.g. hydraulic to a trailer fluid system

Landscapes

  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Valves And Accessory Devices For Braking Systems (AREA)

Abstract

The hydraulically operated car trailer drive has an auxiliary line from the brake force limiter (2) to the trailer, a three-circuit main brake cylinder and a third brake circuit for the suspension. The drive can be added to an existing car by fitting a brake hose from the trailer to a hydraulic coupling, then normal lines to the wheels. When built in from new, a three-circuit main braking cylinder is used, which has three pressure-creating cylinders one behind the other, one for each brake circuit, ie. front wheels, rear wheels and trailer. The hydraulic coupling is still used, and a load-dependent brake force limiter is fitted to the trailer.

Description

Nach dem heutigen Stand der Technik gibt es zwei verschiedene Arten von PKW-Hängerbetrieb:
1. bis 750 kg Gesamtgewicht ungebremst
2. über 750 kg Gesamtgewicht gebremst
durch eine Auflaufbremse.According to the current state of technology, there are two different types of car trailer operation:
1. up to 750 kg total weight without brakes
2. Braked over 750 kg total weight
by an overrun brake.

Diesen beiden Varianten liegt das Problem zugrunde, daß bei plötzlichen Bremsvorgängen der Hänger ausscheren kann (- Auflaufbremse kein Bremskraftbegrenzer, Hängerräder blockieren, Schleudergefahr - ungebremst Hänger schiebt, stellt sich quer zur Fahrbahn -), was für den nachfolgenden Verkehr eine Gefahr darstellt.These two variants are based on the problem that with sudden braking the trailer can swing out (overrun brake no brake force limiter, trailer wheels block, risk of skidding - pushes the trailer without braking, stands across the road -), which poses a danger to subsequent traffic.

Durch die Einwirkung der beiden folgenden Varianten erhöht sich die Verkehrssicherheit, indem PKW und Hänger zur gleichen Zeit gebremst werden, wodurch beim Fahrverhalten Spurtreue erreicht wird.Traffic safety is increased by the action of the following two variants, by braking the car and trailer at the same time, thereby reducing driving behavior Directional stability is achieved.

Variante 1 NachrüstungVariant 1 retrofit

Man legt vom lastabhängigen Bremskraftbegrenzer des PKWs eine Zusatzleitung zur Hängerkupplung. Am Ende der Leitung wird dann eine Hydraulik-Kupplung angeschlossen. Am Hänger verwendet man zuerst einen Bremsschlauch mit dem Gegenstück der Hydraulik-Kupplung, danach normale Bremsleitungen bis zu den Rädern des Hängers. Der Bremsschlauch dient als flexible Verbindung, damit es in Kurvenfahrten zu keinem Abknicken der Leitung kommt. Der Anschluß an den lastabhängigen Bremskraftbegrenzer ist deshalb von Vorteil, da er sich in Abhängigkeit von der Fahrzeugbelastung schließt oder öffnet (d. h. schwächere bzw. stärkere Bremskraft an den Hinter- bzw. Hängerrädern). Siehe Fig. 1.An additional line is attached to the trailer coupling from the load-dependent brake force limiter of the car. A hydraulic coupling is then connected to the end of the line. On the trailer you first use a brake hose with the counterpart of the hydraulic coupling, then normal brake lines up to the wheels of the trailer. The brake hose serves as a flexible connection so that there is no kinking of the line when cornering. The connection to the load-dependent braking force limiter is advantageous because it closes or opens depending on the vehicle load (ie weaker or stronger braking force on the rear or trailer wheels). See Figure 1.

Variante 2 NeubauVariant 2 new building

Man nimmt einen Dreikreishauptbremszylinder. In diesem Hauptbremszylinder sind drei druckerzeugende Kolben hintereinander angeordnet und versorgen jeweils einen Bremskreis (1. Kreis - Vorderräder, 2. Kreis - Hinterräder und 3. Kreis für PKW-Hänger). Nun benutzt man wiederum als Verbindung die Hydraulik-Kupplung und muß zusätzlich am Hänger einen lastabhängigen Bremskraftbegrenzer montieren, um zu verhindern, daß die Hängerräder blockieren. You take a three-circuit master brake cylinder. There are three in this master cylinder pressure-generating pistons arranged one behind the other and each supply a brake circuit (1st circle - front wheels, 2nd circle - rear wheels and 3rd circle for car trailers). Now you use again as a connection the hydraulic coupling and must also have a load-dependent on the trailer Install the brake force limiter to prevent the trailer wheels from locking.  

Variante 2 NeubauVariant 2 new building

Dieses System ist natürlich sicherer als das Zweikreisbremssystem, da im Fall einer Undichtheit demnach zwei Bremskreise voll wirksam bleiben. Siehe Fig. 2.Of course, this system is safer than the dual-circuit braking system, since two braking circuits remain fully effective in the event of a leak. See Figure 2.

Erläuterungen zu Fig. 1Explanations to FIG. 1

1 zweiter Bremskreis
2 lastabhängiger Bremskraftbegrenzer
3 Hydraulik-Kupplung
4 Bremsschlauch
5 Zusatzanschluß mit Bremsleitung zum Hänger 1 second brake circuit
2 load-dependent braking force limiters
3 hydraulic clutch
4 brake hose
5 Additional connection with brake line to the trailer

Erläuterungen zu Fig. 2Explanations to FIG. 2

1 erster Bremskreis
2 zweiter Bremskreis
3 dritter Bremskreis
4 Dreikreishauptbremszylinder
5 lastabhängiger Bremskraftbegrenzer am PKW
6 Hydraulik-Kupplung
7 Bremsschlauch
8 lastabhängiger Bremskraftbegrenzer am Hänger 1 first brake circuit
2 second brake circuit
3 third brake circuit
4 three-circuit master brake cylinders
5 load-dependent brake force limiter on the car
6 hydraulic clutch
7 brake hose
8 load-dependent brake force limiter on the trailer

Claims (1)

Hydraulische Bremsanlage bei PKW-Hängerbetrieb, gekennzeichnet durch eine Zusatzleitung vom Bremskraftbegrenzer des PKW zum Hänger, einen Dreikreishauptbremszylinder, einen dritten Bremskreis für den Hänger.Hydraulic brake system for car trailer operation, characterized by an additional line from the brake force limiter of the car to the trailer, a three-circuit master brake cylinder, a third brake circuit for the trailer.
DE19944434651 1994-09-28 1994-09-28 Hydraulically operated car trailer drive Ceased DE4434651A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19944434651 DE4434651A1 (en) 1994-09-28 1994-09-28 Hydraulically operated car trailer drive

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19944434651 DE4434651A1 (en) 1994-09-28 1994-09-28 Hydraulically operated car trailer drive

Publications (1)

Publication Number Publication Date
DE4434651A1 true DE4434651A1 (en) 1996-04-04

Family

ID=6529412

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19944434651 Ceased DE4434651A1 (en) 1994-09-28 1994-09-28 Hydraulically operated car trailer drive

Country Status (1)

Country Link
DE (1) DE4434651A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853589A1 (en) * 2003-04-09 2004-10-15 Jacky Leonce Bernard Houssin Braking device for trailer, has lead connection connecting car and trailer brake systems, where trailer brake system is connected to isolation faucet fixed between coupling hook and trailer, by push-pull grip

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1036084A (en) * 1951-04-24 1953-09-03 Braking device for light trailers
AT188621B (en) * 1952-10-22 1957-01-25 Hermann Grubhofer Device for actuating the hydraulic brake of vehicle trailers
DE3339609A1 (en) * 1983-11-02 1985-05-09 Horst 2090 Winsen Dörbecker Additional pressure medium operated brake circuit on tractor vehicles and mechanical connecting piece between two pressure medium brake circuits

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1036084A (en) * 1951-04-24 1953-09-03 Braking device for light trailers
AT188621B (en) * 1952-10-22 1957-01-25 Hermann Grubhofer Device for actuating the hydraulic brake of vehicle trailers
DE3339609A1 (en) * 1983-11-02 1985-05-09 Horst 2090 Winsen Dörbecker Additional pressure medium operated brake circuit on tractor vehicles and mechanical connecting piece between two pressure medium brake circuits

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2853589A1 (en) * 2003-04-09 2004-10-15 Jacky Leonce Bernard Houssin Braking device for trailer, has lead connection connecting car and trailer brake systems, where trailer brake system is connected to isolation faucet fixed between coupling hook and trailer, by push-pull grip

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Legal Events

Date Code Title Description
OR8 Request for search as to paragraph 43 lit. 1 sentence 1 patent law
8105 Search report available
8122 Nonbinding interest in granting licenses declared
8110 Request for examination paragraph 44
8131 Rejection