A kind of light-weight electric automobile axle load distribution system and its method of adjustment
Technical field
The present invention relates to light-weight electric automobile axle load distribution technique field, and in particular to a kind of light-weight electric automobile axis
Lotus distribution system and its method of adjustment.
Background technology
Electric automobile due to its discharge it is small, simple in structure, noise is small the advantages that, increasingly approved be subject to market, due to
It is more and more to possess the people of automobile, parking become one it is very troublesome the problem of, many producers are according to such situation, design
Go out the small-sized electric vehicle of two two, i.e., convenient parking, decreases energy consumption, therefore miniaturization, the lightweight of electric automobile
It is the important directions of its development.
Due to electric automobile using the generator of simple structure coordinate fixed speed reducing ratio speed changer replacing fuel oil automobile compared with
Coordinate labyrinth speed changer for complicated engine, the weight of electric automobile is often smaller than fuel-engined vehicle, recently as light
Quantify material, such as ultrahigh-strength steel plates, carbon fiber high-strength material application, while the energy density of battery than it is further
Improve, the weight of electric automobile is less and less.The curb weight of following two two small-sized electric vehicles can reach a 500kg left sides
The right side, if the chassis of electric automobile and transmission system all use lightweighting materials, its weight can be further lowered into a 400kg left sides
It is right.
The dynamic performances such as the riding stability of electric automobile, lateral stability and the forward and backward axle load relations of distribution are close, and
Research is distributed for the axle load of electric automobile, was concentrated mainly on electrical equipment, driving element, drive control device and auxiliary in the past
The preferred arrangement of device, that is, allow the forward and backward axle load of automobile than trying one's best close to 50: 50, but with the development of technology, electric automobile
Curb weight be gradually reduced, and traditional axle load distribution ratio is fixed, can not realize that dynamic adjusts.
For the small-sized electric car of two two, since the weight of two people is more than automobile curb weight
10%, along with luggage can be placed in the forward and backward luggage case of automobile, this just make automobile under complete vehicle curb condition and kerb weight state under
The load ratio of axle change, so as to have impact on its dynamic performance.For different driver and passenger, its into
Enter in-car and be also required to adjustment seat position, this just makes traditional to optimize electric automobile by optimizing the position of parts
Forward and backward axle load than method actual effect it is poorer than theoretical effect.Seat adjuster of the prior art only considered as where
Just to seat adjust, without consider seat adjustment after, the forward and backward axle load of automobile can change, such as patent
A kind of automotive seat regulating system energy power seat described in CN201210199093.6, adjusts the seat to and is adapted to drive
The position that the person of sailing takes, and most suitable position can memory storage adjust automatically when same driver takes convenient next time, but
It is that the regulating system can not be carried out at the same time optimization while automotive seat is adjusted to automobile forward and backward axle load ratio.
Can realize in the prior art actively adjust automobile adjust forward and backward axle load than technology mainly have two kinds, one kind be
The automobile longitudinal direction increase clump weight that slidably adjusts, automobile axle is adjusted by varying the method for clump weight position
Lotus ratio, a kind of device of change centre of gravity of vehicle as described in patent CN201310525931.9, including clump weight, by vertical
The shaft of setting is connected to the motor on automobile, and drive shaft is rotated to drive clump weight to swing, which can be according to each tire
Tire pressure adjust the swaying direction of clump weight, change the center of gravity of automobile by adjusting the swaying direction of clump weight, so may be used
To reduce or eliminate the change of tire pressure, so that car when reducing or eliminating acceleration and deceleration and causing the sinking or lifting and tempo turn of headstock
The inclination of body.But this regulative mode does not meet the development trend of automotive light weight technology, without actual application value, and counterweight
The position adjustment of block is slower, and during automobile flipper turn, the adjustment of clump weight is difficult to match with automobile actual demand.
Another technology is to set active suspension system, and the S grades of automobile belts that such as run quickly have air spring type Active suspension, triumphant
Enlightening clarke CT6 automobiles carry electromagnetic liquid formula Active suspension, and above two Active suspension is by adjusting the rigidity of the forward and backward suspension of automobile
Change forward and backward axle load distribution, but since active suspension system is complicated, cost is very high, it is difficult to popularization and application.
The content of the invention
It is an object of the present invention to provide it is a kind of it is simple in structure, cost is low, can the forward and backward axle load of adjust automatically, reduce the light of oil consumption
Quantify electric automobile axle load distribution system and its method of adjustment.
For achieving the above object, the technical solution adopted in the present invention is:A kind of light-weight electric automobile axle load point
The method of adjustment of match system, the method for adjustment include the following steps that order carries out:Seat is longitudinally adjusted, seat is laterally adjusted
It is whole;
The longitudinally adjusted step of the seat is:It is forward and backward under inactive state after controller calculating automobile passenger
Axle load than the initial forward and backward axle load under A1, automobile empty mass than A2, and according to driver weight W1, copilot weight W2,
Control seat regulator drives seat to move forward and backward in direction longitudinally along an automobile, makes A1 close to A2;
The seat laterally adjusts step:Controller calculates the actual the near front wheel of automobile, off-front wheel load ratio A3, automobile
Actual left rear wheel, off hind wheel load ratio A4, then control seat regulator to drive pilot set and assistant driver seat respectively
Along vehicle transverse direction side-to-side movement, make the ratio of A3, A4 close to 50: 50.
Preferably, the seat further includes associated mechanisms set-up procedure after laterally adjusting step;
The associated mechanisms set-up procedure is:Controller gathers driver's static human size, calculates trunk
With the intersection point H points of thigh, according to static human size, H points and vehicle front center horizontal distance V3, H point terrain clearance H3,
Terrain clearance H4, the E point of the midpoint E points of two lines of driver and distance L1, L2 at left and right rearview mirror center, calculate and adjust
The distance between whole steering wheel, pedal, inside rear-view mirror, outside rear-view mirror and driver and angle.
Preferably, parameter extracting step is further included before the longitudinally adjusted step of the seat;
The parameter extracting step is:Driver is after using key opening car door lock, and car door lock sensor is to control
Device sends car door lock opening signal, and controller starts the human dimension acquisition camera set on the outside of automobile outer rear-view mirror and gathers
The static human size of driver;Controller locks signal obtaining the car door that car door lock sensor sends, and safety belt passes
Sensor is sent after safety belt fastens signal, starts automobile outer rear-view mirror, the position of human eye sensor set in inside rear-view mirror, collection
L1, L2, H4 data;Start the weight sensing for being separately positioned on four wheels of automobile, pilot set, assistant driver seat at the same time
Device, gathers A1, A3, A4, W1, W2 data.
Preferably, driver's static human size includes height, upperarm length, forearm length, thigh length, leg length.
Preferably, driver's static human size collection is by being arranged on vapour by human dimension acquisition camera
Signal distinguishing driver that key sensor on car key is sent simultaneously carries out it static human size collection.
A kind of light-weight electric automobile axle load distribution system, the axle load distribution system include seat, and the seat leads to
Cross seat regulator to be connected with automobile chassis crossbeam, the steering wheel of automobile is connected by steering wheel adjusting mechanism and steering
Connect, the pedal of automobile is connected with braking system, drive system respectively by pedal adjusting mechanism, the inside rear-view mirror of automobile, it is outer after
Visor is connected by visor adjusting mechanism with vehicle body.
Preferably, human dimension acquisition camera, automobile A column trim panel relevant position are set on the outside of automobile primary outside rear-view mirror
Position of human eye sensor is set, and four wheels of automobile, pilot set, set weight sensor, vapour on assistant driver seat respectively
The controller of car respectively with seat regulator, steering wheel adjusting mechanism, pedal adjusting mechanism, visor adjusting mechanism, human body ruler
Very little acquisition camera, position of human eye sensor, weight sensor, the car door lock sensor being arranged on car door lock, setting are present
Seat belt sensor on seat belt, the key sensor being arranged in automobile key connection.
The invention has the advantages that:Adjusted by carrying out longitudinally, laterally direction to automotive seat, change automobile
Forward and backward axle load ratio, to reduce oil consumption, improve automobile handling, while forward and backward axle load also makes the unloaded matter of automobile than adjustable
Amount can flexibly be set, and facilitate the arrangement of other equipment on automobile.The electric automobile of the present invention is installed, in Design Stage
In, arrange the characteristics of forward and backward axle load of automobile being utilized variable when other equipment, flexibly arrange the position of each equipment,
The forward and backward axle load ratio of automobile is allowed to reach certain value, then again by adjusting and driver, the seating position of copilot reach most
Forward and backward axle load ratio under good vehicle driving state, while drive a car relevant equipment with driver, as visor, steering wheel,
The pedal also adjust automatically together with seat, relevant device is adjusted for driver and is driven all more convenient.
Brief description of the drawings
Fig. 1 is automobile front view;
Fig. 2 is the automobile front view with measurement parameter;
Fig. 3 is automobile cab top view;
Fig. 4 is axle load distribution system control circuit schematic diagram.
Embodiment
A kind of light-weight electric automobile axle load distribution system as Figure 1-Figure 4, including seat 1, seat 1 pass through seat
Adjusting mechanism 2 is connected with automobile chassis crossbeam, and seat 1 includes pilot set and the passenger side seat, pilot set and vice operator's seat
Chair is respectively equipped with the seat regulator 2 that each can independently adjust;The steering wheel 3 of automobile by steering wheel adjusting mechanism 4 with
Steering connects;The pedal 5 of automobile is connected with braking system, drive system respectively by pedal adjusting mechanism 6, automobile it is interior
Rearview mirror 10, outside rear-view mirror 9 are connected by visor adjusting mechanism 11 with vehicle body.
Human dimension acquisition camera 21 is set on the outside of automobile primary outside rear-view mirror, and automobile A column trim panel relevant position is set
Position of human eye sensor 24, four wheels of automobile, pilot set, set weight sensor 25, vapour on assistant driver seat respectively
The controller 13 of car respectively with seat regulator 2, steering wheel adjusting mechanism 4, pedal adjusting mechanism 6, visor adjusting mechanism 11,
Human dimension acquisition camera 21, position of human eye sensor 24, weight sensor 25, the car door lock sensing being arranged on car door lock
Device 22, the seat belt sensor 23 being arranged on seat harness, the key sensor 26 that is arranged in automobile key connect.
The method of adjustment of the light-weight electric automobile axle load distribution system includes the following steps that order carries out:Parameter
Extraction, seat is longitudinally adjusted, seat laterally adjusts, associated mechanisms adjust;
The parameter extracting step is:Driver using key opening car door when being locked, human dimension acquisition camera
The 21 signal distinguishing drivers sent by the key sensor 26 being arranged on automobile key, at the same car door lock sensor 22 to
Controller 13 sends car door lock opening signal, and controller 13 starts the human dimension collection shooting set on the outside of automobile outer rear-view mirror
First 21 and gather driver's static human size;Driver's static human size include height, upperarm length, forearm length,
Thigh length, leg length.Corresponding human parameters template can be inquired about according to these sizes, calculates the position of human body H points.
It after occupant sits straight into the car, can fasten seat belts, and start automobile ignition switch, at this moment car door can fall automatically
Lock, the controller 13 send safety obtaining car door locking signal, seat belt sensor 23 that car door lock sensor 22 sends
After band fastens signal, it can confirm that occupant has sat straight and prepared to drive a car, the at this moment startup of controller 13 automobile outer rear-view mirror 9,
The position of human eye sensor 24 set in inside rear-view mirror 10, gathers L1, L2, H4 data;Start at the same time and be separately positioned on automobile four
A wheel, pilot set, the weight sensor 25 of assistant driver seat, gather A1, A3, A4, W1 data.
The longitudinally adjusted step of the seat is:Controller 13 calculates the forward and backward axle load ratio of reality after automobile passenger
Then initial forward and backward axle load under A1, automobile empty mass controls seat regulator 2 to drive seat 1 longitudinally along an automobile than A2
Direction horizontal movement, makes A1 close to A2;
The seat laterally adjusts step:Controller 13 gathers the actual the near front wheel of automobile, off-front wheel load ratio A3, vapour
The actual left rear wheel of car, off hind wheel load ratio A4, then control seat regulator 2 to drive pilot set and front passenger's seat respectively
Chair makes the ratio of A3, A4 close to 50: 50 along vehicle transverse direction left right horizontal movement.
The associated mechanisms set-up procedure is:Controller 3 calculates trunk according to driver's static human size
With the focus H points of thigh, and according to static human size, horizontal distance V3, the H point terrain clearance at H points and vehicle front center
H3, terrain clearance H4, the E point of midpoint E points of two lines of driver and distance L1, L2, the driver at left and right rearview mirror center
Weight W1, calculates simultaneously the distance between adjustment direction disk 3, pedal 5, inside rear-view mirror 10, outside rear-view mirror 9 and driver and angle.
Reference position ratio of the controller 3 according to the data of L1, L2, H4 to the actual eye position of driver and driver's eyes
It is right, and inside-automobile rear mirror 10, the position that outside rear-view mirror 9 should be at and angle are calculated by light reflection principle, then allow interior
Rearview mirror 10, outside rear-view mirror 9 turn to and locus where driver's eyes corresponding correctly position and angle.
The electric automobile of the present invention is installed, in Design Stage, vapour can be utilized when arranging other equipment
The characteristics of Chinese herbaceous peony, variable rear axle load, flexibly arrange the position of each equipment, allows the forward and backward axle load ratio of automobile to reach certain value, then
Again by adjust and driver, copilot seating position come reach optimal vehicle driving state under forward and backward axle load ratio,
Drive a car relevant equipment with driver at the same time, such as visor, steering wheel, the pedal also adjust automatically together with seat, to driving
Relevant device is adjusted for member and is driven all more convenient.