current position:Home>Depth: study and judge the technical status of 2021 ideal one model platform

Depth: study and judge the technical status of 2021 ideal one model platform

2021-08-26 23:05:46 Wechat automobile

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2019 Later in the year , Ideal second model ( The first model is a low-speed electric vehicle , Delisting without listing due to non-compliance with national laws and regulations ), using EREV Ideal for driving technology ONE list .2020 Later in the year , Ideal ONE Because it happens continuously 10 zong “ Broken shaft ” accident , And recall sold 1 More than ten thousand .2021 Earlier this year ,2021 The ideal ONE list .

Early ideals ONE The power system consists of 1 Three in-line cylinders 1.2T The engine ( Maximum output 96 kw )、1 A generator ( Maximum generating power 60 kw )、1 One front drive motor ( Maximum output 100 kw )、1 One rear drive motor ( Maximum output 140 kw ) and 1 Three element lithium battery system ( Loading capacity 40.5 Degree electricity ) constitute .

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among , In line three cylinder 1.2T The engine is provided by Dong'an power 、 The generator and front drive motor are provided by United electronics ( The dual electric control system is provided by Huichuan )、 The rear drive motor is provided by BorgWarner 、 The central ternary lithium battery system is provided by Ningde times .

It should be noted that (1), Early ideals ONE Launch a nickel cobalt lithium manganate battery system model purchased from Xi'an BYD (LXA6500SHEVM4)

2021 The ideal ONE The in-line three cylinders from Dong'an are still used 1.2T The engine , Maximum output power of generator 60 kw ( United electronics provides )、 Maximum output power of front drive motor 100 kw ( United electronics provides )、 The dual motor electric control system provides power for Huichuan , Post provided by Huichuan “3 close 1” The maximum output power of the electric drive assembly is increased to 145 kw , Behind BorgWarner “2 close 1” The drive motor is improved , The fuel tank volume is from 45 Lift to 55 l .

What's interesting is that , Ideal ONE Listed nearly 3 Year time , There are few media on the model platform of this car 、 In line three cylinder 1.2T The engine 、 Front and rear suspension and “ bulge ” The fuel tank at the lowest end of the body and “ Droop ” A detailed interpretation of the technical status such as a section of the exhaust pipe .

The new energy information and analysis network will be responsible for 2021 The ideal ONE After recall , Replace the lower part of the front suspension with a new one A Technical status of model platform of type-A swing arm “ characteristic ” Study and judge .

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take 2021 The ideal ONE Visible after lifting , The front subframe made of steel has no lower guard 、 Front section of exhaust pipe 、 Soft connection 、 The middle section and tail section of the exhaust pipe are all exposed ( Bypass the front passenger side of the power battery ).

The red arrow : The rear end of the steel front subframe is “ artificial ” Set a set of “ Sunken ”, It is used to accommodate the part near the front end of the middle section of the exhaust pipe

Yellow arrow :“ bulge ” The horizontal plane at the lowest end of the vehicle body is about 40mm( Front subframe - The middle power battery is in the same horizontal plane )

Blue arrow : Steel guard plate for protecting iron fuel tank

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take 2021 The ideal ONE Lift to a suitable height , Take the lowest horizontal line of the vehicle body as the reference , The middle section of the exhaust pipe indicated by the red arrow and the fuel tank guard indicated by the yellow arrow , All “ bulge ” At the lowest horizontal plane of the vehicle body .

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Due to the exhaust pipe “ bulge ” On the front subframe , therefore 2021 The ideal ONE And old models cannot be equipped with lower guard as standard 、 Even the third-party supplier did not launch the protection in-line three cylinders because it was too difficult to manufacture 1.2T Guard for engine oil pan .

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The picture above shows 2021 The ideal ONE Close up of technical status of front subframe .

The red arrow : Steel frame front subframe

White arrow : be based on ABS+ Steel lower A Type swing arm

The green arrow : Aluminum front knuckle

Yellow arrow : Set up 1 The lower guard is used to protect the coolant at the front end of the power battery 、 High voltage cable and communication cable interface

Blue arrow : Power battery driver side setting 1 Assemble the lower guard , Used to protect the brake fluid and fuel lines to the rear drive axle

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What can be confirmed is 2021 The ideal ONE Adapted to ABS Under the material A The swing arm is in a new state . According to its official information , Next A The ball pin of type a swing arm is modified , It will not be damaged due to slight collision during driving “ Broken shaft ”.

The red arrow : Aluminum front knuckle

Blue arrow :ABS+ Steel material A Type swing arm ( Ball pin integrated setting )

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2021 The ideal ONE Next to A The strength of the ball pin part of the swing arm is increased to 50kN( Previously 35kN), It can reduce the ball pin from the steering knuckle during collision “ Draw out ” And “ Broken shaft ” Probability .

The red arrow : In the new state A The ball pin of type a swing arm is set longer , It can increase the section and strength of reverse bolt fixation , Ensure that in case of medium and low speed collision A The swing arm ball pin will not be in the front knuckle because “ Draw out ” and “ Broken shaft ”

Yellow arrow : The strength of the ball pin part ( Long ) The degree is strengthened

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2021 The ideal ONE Another improvement over the old models is the evolution of the rear guard . The rear guard covers almost half the area of the welded rear floor of the body , Just to protect the carbon canister . The old model is ideal ONE The position of the rear guard is set 1 Group rear motor controller , Connect the rear subframe through the high-voltage cable “ Hanging ” the “2 close 1” Motor system . and 2021 The ideal ONE The rear electric drive system evolved into “3 close 1”, The motor controller is moved to the upper end of the rear motor , Protected more completely .

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Remove the rear guard , so 2021 The ideal ONE Rear canister ( Red arrow ). In daily use , If the carbon canister is damaged by external force, it will not cause serious problems related to safety .

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Ideal ONE The rear suspension is a standard multi link independent structure , But the striking rear lower arm is not made of aluminum, but of steel after surface treatment .

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The red arrow : White steel rear lower swing arm

The green arrow : Aluminum rear knuckle

Yellow arrow : Aluminum upper control arm

Blue arrow : Aluminum cross pull arm

White arrow : Bar material trailing arm

With rear subframe ( be used for “ Hanging ” Rear drive motor ) Multi link architecture , among 4 The control arm is made of aluminum 2021 The ideal ONE The workmanship of the rear suspension did not say .

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The figure above shows the direction from the rear suspension to the front suspension , After shooting 55 Close up of l-volume fuel tank and bottom guard .

The red arrow : Steel fuel tank bottom guard

Yellow arrow : Iron fuel tank

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Close up of fuel tank and bottom guard in close range .

It should be noted that (2), The fuel tank bottom guard is the same as the exhaust pipe , All are ““ bulge ” Applicable to battery system 、 The horizontal plane formed by the lowest end of the front subframe .

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Look at it from another Angle , obvious “ prominent ” The fuel tank guard and the central power battery system 、 Lateral fuel / Compare the status of the brake line guard .

The blue area : Fuel tank guard

The red arrow : Front high-voltage power of power battery system 、 Low pressure communication and cooling pipeline interface

Yellow arrow : To protect the brakes / Side guard for fuel lines

It is necessary to point out that , No matter what “ Oil to electricity ” framework , It is also a model platform under development , Are looking for a more regular chassis state .2021 The ideal ONE Adapted to 55 L iron fuel tank is very necessary ,“ bulge ” The fuel tank guard plate of is impacted by external force , The iron fuel tank body can also have a certain protective ability , Avoid fuel leakage, fire and combustion accidents .

About 2021 The ideal model is based on ABS+ Steel ball pin integrated lower A Personal subjective view of type swing arm :

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2020 year 11 month 2 Japan , Li Xiang, the person in charge of the ideal car of the new power of car making, is at the ideal car Beijing delivery center , Hold a press conference to admit   Ideal ONE Front suspension ( frame ) Next (A type ) The swing arm is defective .

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2020 year 2 month 28 Japan , Ideal car officials issued a response ID: Yuan qicong's microblog . The contents are as follows , use PA6+GF50 The lower part composed of composite materials A Type swing arm , It can ensure the strength and reduce the self weight , Thus reducing the unsprung mass ; At the same time, it has lower ball pin torque , Reduce friction in the suspension , Improve the dynamic performance of the vehicle . Guan Wei thinks , This method of ensuring strength and lightweight , And Tesla Model X as well as Model S.

2020 year 11 month 2 Japan , Ideal car announced a recall. The production date is 2019 year 11 month 14 solstice 2020 year 6 month 1 Japan , total 10469 Taiwan ideal ONE Replace the lower swing arm of the front suspension with higher ball pin release force for free , In order to eliminate potential safety hazards .

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The picture above shows 202 year 5 month 11 Japan , Ideal ONE The second time that happened 2 zong “ Broken shaft ” Detail close-up after partial enlargement of the picture of the accident scene .

The red arrow : The lower swing arm made of composite material is not broken

Yellow arrow : The ball pin fixed on the lower swing arm is missing

Blue arrow : The front steering knuckle is suspected to be intact

In this case “ Broken shaft ” In the accident , Fixed under A The ball pin of the swing arm seems to have disappeared , It may also be obscured by the shooting angle .

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After some twists and turns , Finally buy... From a third-party channel ( Auto Parts City ) buy 1 Ideal for new status after group recall ONE Next A Type swing arm , And use from third-party channels ( Parts wholesalers ) Purchased 2018 Jin Tang DM Next A Type swing arm .

The red arrow :2018 Jin Tang DM Made of aluminum A Type swing arm

Blue arrow : After the recall, the new state is ideal ONE Of ABS+ Steel material A Type swing arm

White arrow : Ideal ONE Next to A The swing arm adopts the lightweight setting of hollowed out treatment

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2018 Jin Tang DM Next to A The lower ball pin is adopted for the swing arm 3 Setting of bolt fixing , It can not only be replaced separately, but also reduce the maintenance cost , The strength between the lower ball pin and the swing arm can also be strengthened by fixing bolts .

It should be noted that (3), The tang dynasty DM The top of the lower ball pin ball joint is set with 1 A round hole ( The blue arrow indicates ) Used to secure the safety pin

Then there is a problem , When loading A Type swing arm passes through 3 The bolt is fixed with the lower ball pin . However, assemblies purchased from third-party channels , Only with 2 Two bolts ( Red arrow ).

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Ideal for a new state after a recall ONE Next A Type swing arm ball pin ball joint , A round hole without a round hole for a safety pin .

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It should be noted that (4): The error of weighing equipment is not excluded , The lower part of the two models A The self weight of the swing arm is for reference only , But the weight difference is not prominent .

Compare from the individual lightweight level of accessories ,2018 Jin Tang DM Made of all aluminum A The self weight of the swing arm is about 4.3 kg , Ideal for a new state after recall ONE Of ABS+ Steel lower A The self weight of the swing arm is about 4.1 kg , Ideal ONE There are advantages .

Compare the convenience of purchase channels ,2018 Jin Tang DM Next A Type swing arm can be used anywhere in the country 4S Shop purchase 、 Or the auto parts market , Ideal ONE Next to A Type a swing arm and other accessories can only be replaced in the process of maintenance or insurance claims in its official Direct stores and will not be sold , BYD 2018 Jin Tang DM It has the advantage of convenient maintenance .

Cost comparison of individual purchase of accessories ,2018 Jin Tang DM Next to A Type swing arm ( Including lower ball pin ) The ex warehouse price is 385.2 element ( Place an order immediately and deliver it to your door ); After the recall, the new state is ideal ONE Next A The ex warehouse price of type swing arm is 700 Yu Yuan 、 cost 2 After a period of months, the arrival price after multiple procedures is 1200 Yu Yuan .

About 2021 Personal subjective views on the setting of the ideal rear drive motor controller :

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2019 year 8 Released earlier this month 《 Song Nan : Try to study and judge the ideal ONE Increase the charging and discharging efficiency of oil electric hybrid vehicle 》 One article . This machine is ideal for testing ONE, Rear electric drive controller ( Red area ) direct “ Hanging ” Weld the lower part of the rear floor on the body .

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The picture above shows the ideal old model of mass production ONE Close up of technical status of rear suspension and body welded rear floor .“ Hanging ” The external electric drive controller is covered by a set of non steel protective plates . But even so , It also exists because “ Drag the bottom ” And cause the guard plate to crack , The probability of damage to the rear drive motor controller .

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2021 year 6 Earlier in the month ,1 Taiwan old style ideal ONE There is a underpinning accident , Cause the rear guard to crack 、 The rear motor controller bracket is broken . immediately ONE It makes sense ID Release information that this is a normal protective measure , It is to protect the electric drive controller through bracket fracture in case of collision .

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The picture above shows 2018 BYD Tang, which was mass produced in late 2004 DM Close up of technical status of rear drive motor system . And 2019 The ideal of annual mass production ONE equally , The rear drive motor adopts motor controller and drive motor ( Including reducer ) Separate the set architecture . But don DM The rear motor controller is set in the body welding position ( Rear floor ) inside , Maximum protection .

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The picture above shows 2019 BYD song, which was mass produced in late 2004 Pro DM Close up of vehicle platform architecture . And 2021 The ideal of annual mass production ONE equally , The motor controller will be set separately ( The yellow arrow indicates ) And drive motor ( Red arrow ) And reducer ( The blue arrow indicates ) the “3 close 1” Integrate . From the physical structure , The motor controller located at the top of the drive motor , There will be no high probability of being damaged by external impact force in daily use .

I have something to say :

About 2021 Ideal in-line three cylinder 1.2T Engine exhaust pipe “ Droop ” Make a personal subjective view , The technical status of each subsystem of the front power compartment of the real vehicle will be explained in detail later .

Ideal ONE At the beginning of the project, through multiple rounds and brands of engines , Whereas EREV Driver Architecture , So that the transverse engine + Transverse drive motor ( Alternator ) The width of is consistent with that of the front power compartment and subframe of the vehicle platform .

Set the traction point for the model with the appropriate engine , Or need a larger model platform ( Front power compartment ) accommodate , This may affect the length and weight of the vehicle ;

Give priority to model platform ( Front power compartment ) The size is the traction point , Transverse engine + Drive motor ( Alternator ) The width of the is limited , This may affect engine power and, most importantly, power generation / Balance of driving efficiency ;

Only 2021 The ideal ONE“ Droop ” The exhaust pipe coming out cannot fit the lower guard ; After the recall A The purchase cost of the swing arm 、 Lightweight and ease of purchase ;“ bulge ” The iron fuel tank at the lowest end of the vehicle body has potential safety hazards after being impacted , It's hard to be noticed by potential customers .

Of course , The price is 33 Ten thousand yuan 、 adapter 3 Ideal for cylinder engines ONE Our customers may not notice the technical points mentioned above . The author hopes to let more car owners of other brands see the ideal ONE Status of the vehicle , According to this, you can compare the technical status of the corresponding subsystem of the vehicle you choose .....

For BYD don DM And ideals ONE Comparison of models and platforms , Will be combined with in-line 4 cylinder 2.0T Engine and in-line three cylinder 1.2T Layout of engine and exhaust system , Give a comprehensive conclusion .

To be continued ...

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