Методика расчета тягово-скоростных свойств и топливной экономичности автомобиля на стадии проектирования. Вохминов Д.Е - 34 стр.

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МАМИ | Москва

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34
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Dhwnnbpb_glub
ihklhyggu_\_ebqbgu
\oh^ysb_\jZkq_lu
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d
lj
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U
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τ
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lZ[e
                                                   34
                                                                                                      LZ[ebpZ

            We_f_glukbeh\h]hblhieb\gh]h[ZeZgkZZ\lhfh[bey

                                                                                             Dhwnnbpb_glub
                                      JZkq_lgu_nhjfmeu
   I:J:F?LJU                                                                               ihklhyggu_\_ebqbgu
                                   bboihjy^dh\ucghf_j
                                                                                            \oh^ysb_\jZkq_lu
         dhe_kZ        - d = γ d ⋅ Ud                                    (8)              γ d]f3
         we_f_glh\
Fhf_glu                Jlj = Jd⋅n\⋅γlj                                    (9)              γlj lZ[e
        ljZgkfbkkbb
bg_jpbb
         ^\b]Zl_ey     - ^\ = - R +
                                         (L9K ) ⋅ γ                      (10)             Jobγ^\ lZ[e
                                                       ^\
                                               L
                                             - d + - lj + - ^\ X lj
Wd\b\Ze_glgZyfZkkZ    * wd\ = * D +                                      (7)                          —
                                                        Ud
                                                     
                                       9 
:wjh^bgZfbq_kdh_            K ; ρ \ )                                                  ρ\ d]f3
khijhlb\e_gb_                           
                       JZ =                                                         (11) KO lZ[eb
                                     
                                            9 
                                                                                            N µ I 
                                                                  [
                       3I = * D ⋅ J I RR + N   + µ I 3Z ± 3M ± 3α (12)      ]                   
                                                                                                      lZ[e 
                                              
Khijhlb\e_gb_                                                                                ∆5 I 
dZq_gbxrbg                                          G
                                       +         ⋅  + ∆5 I
                       ]^_ I RR =                  <                              (13)
                                                       Ud
Khijhlb\e_gby\                        R
                       J lj = µ h * P 3lj(                    )   (
                                          h + Z 9 + µ 3I + 3Z ± 3 M ± 3α               )   J hlj h bZ  lZ[e
ljZgkfbkkbb                                                               (14)             µbµh lZ[eb 
F_oZgbq_kdb_
khijhlb\e_gby     \
                                                                X lj ⋅ 9   X lj
                                                                             
^\b]Zl_e_         b   3Pτ =
                               L9K  h
                                     S P + S hτ + (E P + E τ )                         S hP  S Rτ 
khijhlb\e_gby    hl            π                                                                      lZ[e
                                                                Ud ⋅    Ud
ijb\h^Z                                                                                    E P  E τ 
                                                                          (17)
\kihfh]Zl_evgh]h
h[hjm^h\Zgby
M^_evguc
bg^bdZlhjguc jZkoh^                               gis = gis*                              gis  lZ[e
lhieb\Z
Wnn_dlb\gZy                    L9K ⋅ Q 
                                                                                     
                                                                    πQ 
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                                                                              
 ^eykijZ\hdb                                                                            pi max  lZ[e
khihklZ\e_gbc                                         (18)        b     (19)

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