WO2022173403A1 - Electrical heavy-duty axle with independent suspension - Google Patents

Electrical heavy-duty axle with independent suspension Download PDF

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Publication number
WO2022173403A1
WO2022173403A1 PCT/TR2022/050108 TR2022050108W WO2022173403A1 WO 2022173403 A1 WO2022173403 A1 WO 2022173403A1 TR 2022050108 W TR2022050108 W TR 2022050108W WO 2022173403 A1 WO2022173403 A1 WO 2022173403A1
Authority
WO
WIPO (PCT)
Prior art keywords
many
heavy
axle
terms
designed
Prior art date
Application number
PCT/TR2022/050108
Other languages
French (fr)
Inventor
Veysel ALVER
Original Assignee
Mpg Maki̇ne Prodüksi̇yon Grubu Maki̇ne İmalat Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
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 Mpg Maki̇ne Prodüksi̇yon Grubu Maki̇ne İmalat Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇ filed Critical Mpg Maki̇ne Prodüksi̇yon Grubu Maki̇ne İmalat Sanayi̇ Ve Ti̇caret Anoni̇m Şi̇rketi̇
Publication of WO2022173403A1 publication Critical patent/WO2022173403A1/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B35/00—Axle units; Parts thereof ; Arrangements for lubrication of axles
    • B60B35/12—Torque-transmitting axles
    • B60B35/14—Torque-transmitting axles composite or split, e.g. half- axles; Couplings between axle parts or sections
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G15/00—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type
    • B60G15/08—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring
    • B60G15/12—Resilient suspensions characterised by arrangement, location or type of combined spring and vibration damper, e.g. telescopic type having fluid spring and fluid damper
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2202/00—Indexing codes relating to the type of spring, damper or actuator
    • B60G2202/30—Spring/Damper and/or actuator Units
    • B60G2202/31—Spring/Damper and/or actuator Units with the spring arranged around the damper, e.g. MacPherson strut
    • B60G2202/314—The spring being a pneumatic spring
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2204/00—Indexing codes related to suspensions per se or to auxiliary parts
    • B60G2204/40—Auxiliary suspension parts; Adjustment of suspensions
    • B60G2204/419—Gears
    • B60G2204/4191—Planetary or epicyclic gears
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2206/00—Indexing codes related to the manufacturing of suspensions: constructional features, the materials used, procedures or tools
    • B60G2206/01—Constructional features of suspension elements, e.g. arms, dampers, springs
    • B60G2206/011—Modular constructions
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/02—Trucks; Load vehicles
    • B60G2300/026—Heavy duty trucks
    • B60G2300/0262—Multi-axle trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60G—VEHICLE SUSPENSION ARRANGEMENTS
    • B60G2300/00—Indexing codes relating to the type of vehicle
    • B60G2300/50—Electric vehicles; Hybrid vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
    • B60K17/00—Arrangement or mounting of transmissions in vehicles
    • B60K17/34—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles
    • B60K17/356—Arrangement or mounting of transmissions in vehicles for driving both front and rear wheels, e.g. four wheel drive vehicles having fluid or electric motor, for driving one or more wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/36—Vehicles designed to transport cargo, e.g. trucks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/40—Working vehicles

Definitions

  • Electric vehicles provide many advantages over diesel-engined vehicles because they have low maintenance costs, can provide high torque in a wide speed range and are eco-friendly.
  • a system where the electric vehicle is designed with a Hydropneumatic suspension system significant advantages are provided in terms of volume, and a solution that can be quickly adapted to different load conditions without changing the design is possible.
  • the conventional suspension systems can be optimized for a limited weight as a result of a long development process.
  • the hydropneumatic system the system can quickly return to the balance point for different weights thanks to the balance of the oil pressure and air pressure between the wheels.
  • FIG. 1 a schematic top view of the axle system is presented, illustrating that it was converted to a modular structure with an additive system. Since each axle system can generate power independently of the others, the system can be extended to adapt to different superstructures and different weights.
  • hydropneumatic suspension It is a part to which the hydropneumatic suspension is connected and which has a planet gear assembly with an adjusted rotation ratio for power transmission.
  • Electric Motor Unit In this unit, there is at least one electric motor and a gear mechanism connected thereto. The first rotation ratio is provided with the gear mechanism located in this electric motor unit.
  • axles containing an electric motor can be added according to the desired power requirement.
  • FIG. 1 A Schematic Frontal View of the Axle A frontal view of the system is presented in this figure.
  • the motion is generated in the electric motor units located in the axle centers.
  • the electric energy is converted to the kinetic energy and drives both wheels.
  • the electric motor unit located in the axle center adjusts the rotation ratio with the gears therein.
  • the rotation ratio can be determined optionally in the system.
  • a second rotation ratio in the wheel hub can be determined according to the service requirements and the desired maximum speed values.
  • the Flydropneumatic suspension connected to the wheel hub enables the connection between the chassis and the axle.
  • the system fed by oil pumps, accumulators, and air compressors and run electronically, enables the operation of the suspension within the design limits.
  • the invention is a new candidate product for the infrastructure and motion center of all currently used heavy-duty vehicles. This product can directly be applied in the industry, and used in the infrastructure for different heavy-duty service requirements.

Abstract

In diesel-engined heavy-duty vehicles, there are problems relating to the need for continuous maintenance, high costs per kilometer and compatibility of the systems with each other in the current technology. The fact that there are too many drive trains and all of them are driven mechanically from the same source leads to the problem that there are too many and costly mechanical failures and routine mechanical maintenances. The independent suspensions with air systems used in many vehicles today take up a lot of space in terms of volume and are also designed with many limitations depending on the weight of the vehicle. In a system where the electric vehicle is designed with a hydropneumatic suspension system, significant advantages are provided in terms of volume, and a solution that can be quickly adapted to different load conditions without changing the design is possible. The system specified in this invention is an axle system that enables an electrically driven modular design having a hydropneumatic suspension.

Description

Electrical Heavy-Duty Axle with Independent Suspension
1. Title of the Invention
Electrically Driven Heavy-Duty Axle System with Hydropneumatic Suspension
2. Related technical field
Trailer trucks, trucks, tractors, mobile cranes, wreckers, and other special-purpose heavy commercial vehicles.
3. State of the art
In diesel-engined heavy-duty vehicles, there are problems relating to the need for continuous maintenance, high costs per kilometer and compatibility of the systems with each other in the current technology.
The fact that there are too many drive trains and all of them are driven mechanically from the same source leads to the problem that there are too many and costly mechanical failures and routine mechanical maintenances. Erroneous maintenances and failure recoveries carried out inexpertly also lead to additional costs and loss of time.
The independent suspensions with air systems used in many vehicles today take up a lot of space in terms of volume and are also designed with many limitations depending on the weight of the vehicle. When these criteria change during the vehicle design, significant suspension changes are required in the infrastructure in relation to the superstructure, and sometimes an independent suspension solution is not possible.
4. Problems to be solved by the invention
Electric vehicles provide many advantages over diesel-engined vehicles because they have low maintenance costs, can provide high torque in a wide speed range and are eco-friendly. In a system where the electric vehicle is designed with a Hydropneumatic suspension system, significant advantages are provided in terms of volume, and a solution that can be quickly adapted to different load conditions without changing the design is possible. It is known that the conventional suspension systems can be optimized for a limited weight as a result of a long development process. On the other hand, in the hydropneumatic system, the system can quickly return to the balance point for different weights thanks to the balance of the oil pressure and air pressure between the wheels.
5. Description of the Drawings
In Figure 1 , a schematic top view of the axle system is presented, illustrating that it was converted to a modular structure with an additive system. Since each axle system can generate power independently of the others, the system can be extended to adapt to different superstructures and different weights.
In Figure 2, a schematic front view of the system is presented, illustrating the Flydropneumatic suspension and the connection points.
6. Description of the reference numbers in the drawings
Figure 1 - Working Principle of the System, Main Components
1. Wheel Hub (Hub)
It is a part to which the hydropneumatic suspension is connected and which has a planet gear assembly with an adjusted rotation ratio for power transmission.
2. Hydropneumatic Suspension
It is a part that acts as a spring with the gas therein, and performs damping hydraulically with the liquid fluid.
3. Electric Motor Unit In this unit, there is at least one electric motor and a gear mechanism connected thereto. The first rotation ratio is provided with the gear mechanism located in this electric motor unit.
4. Modular Axle System
Thanks to this technology, the resilience of the infrastructure is provided by adding axles containing an electric motor. Axles can be added according to the desired power requirement.
Figure 2. A Schematic Frontal View of the Axle A frontal view of the system is presented in this figure.
5. Shaft
It is a part that enables power transmission from the motor unit to the planet gear mechanism located in the wheel hub.
7. Description of the Invention
In the system, the motion is generated in the electric motor units located in the axle centers. At this point, the electric energy is converted to the kinetic energy and drives both wheels. The electric motor unit located in the axle center adjusts the rotation ratio with the gears therein. The rotation ratio can be determined optionally in the system. A second rotation ratio in the wheel hub can be determined according to the service requirements and the desired maximum speed values.
The Flydropneumatic suspension connected to the wheel hub enables the connection between the chassis and the axle. The system, fed by oil pumps, accumulators, and air compressors and run electronically, enables the operation of the suspension within the design limits.
8. Industrial Applicability of the Invention The invention is a new candidate product for the infrastructure and motion center of all currently used heavy-duty vehicles. This product can directly be applied in the industry, and used in the infrastructure for different heavy-duty service requirements.

Claims

1 . A heavy-duty axle system, characterized in that it has an electric motor unit (3) located in the axle center, an independent hydropneumatic suspension (2) system, and a modular axle system (4), the number of which can be increased by adding new axles.
PCT/TR2022/050108 2021-02-15 2022-02-09 Electrical heavy-duty axle with independent suspension WO2022173403A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
TR202102860 2021-02-15
TR2021/002860 2021-02-15

Publications (1)

Publication Number Publication Date
WO2022173403A1 true WO2022173403A1 (en) 2022-08-18

Family

ID=82838503

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/TR2022/050108 WO2022173403A1 (en) 2021-02-15 2022-02-09 Electrical heavy-duty axle with independent suspension

Country Status (1)

Country Link
WO (1) WO2022173403A1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1967641A (en) * 1931-06-26 1934-07-24 Cleveland Pneumatic Tool Co Hydropneumatic shock absorber
CN201300703Y (en) * 2008-09-08 2009-09-02 动力新跃(北京)汽车科技有限公司 Multi-motor drive system
US20170072792A1 (en) * 2014-03-10 2017-03-16 Zhejiang Geely Holding Group Co., Ltd Electric vehicle
CN109436095A (en) * 2018-12-26 2019-03-08 湖北航天技术研究院特种车辆技术中心 A kind of Modular electrical driving travel unit and multiaxis travel unit
CN112092606A (en) * 2020-10-13 2020-12-18 武汉鲸鱼座机器人技术有限公司 Wheeled electric drive axle with power supply system and control method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1967641A (en) * 1931-06-26 1934-07-24 Cleveland Pneumatic Tool Co Hydropneumatic shock absorber
CN201300703Y (en) * 2008-09-08 2009-09-02 动力新跃(北京)汽车科技有限公司 Multi-motor drive system
US20170072792A1 (en) * 2014-03-10 2017-03-16 Zhejiang Geely Holding Group Co., Ltd Electric vehicle
CN109436095A (en) * 2018-12-26 2019-03-08 湖北航天技术研究院特种车辆技术中心 A kind of Modular electrical driving travel unit and multiaxis travel unit
CN112092606A (en) * 2020-10-13 2020-12-18 武汉鲸鱼座机器人技术有限公司 Wheeled electric drive axle with power supply system and control method thereof

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