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Drive system and method of driving a vehicle

A drive system, vehicle technology, used in hybrid vehicles, motor vehicles, electric vehicles, etc.

Pending Publication Date: 2015-04-22
SCANIA CV AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If at the same time the electrical energy storage is used by other electrically operated components in the vehicle (e.g. the compressor of the air conditioning unit, etc.), the electrical energy storage can discharge very quickly

Method used

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  • Drive system and method of driving a vehicle
  • Drive system and method of driving a vehicle

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Embodiment Construction

[0022] figure 1 A drive train for a heavy-duty vehicle 1 is shown. The drive train includes a combustion engine 2 , a gearbox 3 , a plurality of drive shafts 4 and drive wheels 5 . Between the combustion engine 2 and the gearbox 3 , the drive train comprises an intermediate section 6 . figure 2 The components in the middle part 6 are shown in more detail. In the middle part 6, the combustion engine 2 is provided with an output shaft 2a and the gearbox 3 is provided with an input shaft 3a. The output shaft 2a of the combustion engine is arranged coaxially with respect to the input shaft 3a of the gearbox. The output shaft 2 a of the combustion engine and the input shaft 3 a of the gearbox are arranged rotatably about a common axis of rotation 7 . The middle part 6 comprises a housing 8 enclosing the electric motor 9 and the planetary gear. The electric machine 9 comprises a stator 9a and a rotor 9b in a conventional manner. The stator 9a comprises a stator core attached ...

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PUM

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Abstract

The present invention concerns a drive system and a method of driving a vehicle (1). The drive system a combustion engine (2). a brake device (24) with which the vehicle (1) can be braked, an electric machine (9), an energy storage (20) which is connected to the electric machine, at least one assembly (22) which is operated by electric energy, a planetary gear which comprises a sun wheel (10), a ring wheel (11) and a planet wheel holder (12). The drive system comprises a control unit (18) which is adapted to, at an operation occasion when the vehicle (1) is stationary, no driving moment (Tg) is demanded by the vehicle (1) and the coupling member ( 15) is in the first position (Il), activate the brake device (24) such that it brakes the vehicle (1) with a braking moment (Tb) such that the vehicle (1) is maintained in a stationary position at the same time as it controls the electric machine (9) such that it supplies a moment (Tel) which results in that the electric machine (9) generates so much electric effect (Eel) that the operation of said assembly (22) is maintained.

Description

technical field [0001] The invention relates to a drive system according to the preamble of claim 1 and a vehicle driving method according to the preamble of claim 11 . Background technique [0002] Conventional clutch mechanisms used in transmissions to decouple the input shaft of the transmission from the combustion engine during the shifting process suffer from several disadvantages. When the stationary vehicle starts, the plates of the clutch mechanism slide against each other. Thus, the disk is heated. This heating leads to increased fuel consumption and wear on the clutch discs. Traditional clutch mechanisms are also relatively heavy and expensive. It also occupies a relatively large space in the vehicle. Using a hydraulic torque converter also results in losses. [0003] A hybrid vehicle may be driven by a main prime mover, which may be a combustion engine, and an auxiliary prime mover, which may be an electric machine. The electrical machine is equipped with at...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60K6/48B60K6/365B60W10/06B60W10/08B60W10/26B60W30/18B60W20/00
CPCY02T10/6286B60W10/06B60W30/18054B60K6/48B60W20/106B60W10/26B60W10/08B60K6/365Y02T10/6221B60W20/13B60W30/18027B60K2006/4825B60W2510/244B60W10/184Y10S903/93Y02T10/62B60W10/18B60W10/24B60W10/30B60W2710/305B60W2710/244
Inventor N·彼得松M·贝里奎斯特A·谢尔M·比约克曼J·林德斯特伦
Owner SCANIA CV AB
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